# List of nuclear research reactors

This is an annotated list of all the nuclear fission-based nuclear research reactors in the world, sorted by country, with operational status. Some "research" reactors were built for the purpose of producing material for nuclear weapons.

## Algeria

Nuclear research reactors in Algeria :
| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| Nur | Algiers | Pool | | Temporary shutdown | 1,000 | 1989-03-24 | | Centre de Dévéloppement des Techniques Nucléaires | |
| Es Salam | Aïn Oussera, Djelfa | Heavy water | | Operational | 15,000 | 1992-02-17 | | Centre de Recherche Nucléaire de Birine (CRNB) | |

## Antarctica

Nuclear research reactors in Antarctica :
| Name | Location | Reactor type | Purpose | Status | Capacity (kW) | Construction start date | Operation date | Closure | Operator and owner |
| PM-3A NNPU "Nukey Poo" | McMurdo Station | | Power reactor | Shut down | 1,800 | | 1962 | 1972-09, fully dismantled 1979 | US Navy |

## Argentina

Nuclear research reactors in Argentina :
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator |
| RA-10 | Buenos Aires | Pool | Under construction | 30,000 | (late 2023) | National Atomic Energy Commission |
| RA-4 | Rosario | Homog (S) | Operational | 0.00 | 1972-01-01 | National University of Rosario |
| RA-2 | Buenos Aires | Crit assembly | Decommissioned | 0.03 | 1966-07-01 | National Atomic Energy Commission |
| RA-8 | San Carlos de Bariloche | Crit assembly | Temporary shutdown | 0.01 | 1997-06-17 | National Atomic Energy Commission |
| RA-1 Enrico Fermi | Buenos Aires | Tank | Operational | 40 | 1958-01-20 | National Atomic Energy Commission |
| CAREM 25 | Lima | Pwr propulsion | Under construction | 100,000 | | National Atomic Energy Commission |
| RA-6 | San Carlos de Bariloche | Pool | Operational | 500 | 1982-09-23 | National Atomic Energy Commission |
| RA-0 | Córdoba | Tank | Operational | 0.01 | 1965-01-01 | National University of Córdoba |
| RA-3 | Ezeiza | Pool | Operational | 10,000 | 1967-05-17 | National Atomic Energy Commission |

## Australia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| OPAL | Lucas Heights | Pool | See notes below table. | Operational | 20,000 | 2006-08-12 | | ANSTO | LWR |
| CF | Lucas Heights | Crit assembly | | Decommissioned | 0.00 | 1973-03-01 | | ANSTO (formerly Australian Atomic Energy Commission) | |
| HIFAR | Lucas Heights | Heavy water | | Permanent shutdown | 10,000 | 1958-01-26 | 2007-01-30 | ANSTO (formerly Australian Atomic Energy Commission) | DIDO class |
| MOATA | Lucas Heights | Argonaut | | Decommissioned | 100 | 1961-04-01 | 2009 | ANSTO (formerly Australian Atomic Energy Commission) | Argonaut |
Notes: The main uses of the current OPAL reactor are:
* Irradiation of target materials to produce radioisotopes for medical and industrial applications
* Research in the fields of materials science and structural biology using neutron beams and its sophisticated suite of experimental equipment
* Analysis of minerals and samples using the neutron activation technique and the delay neutron activation technique
* Irradiation of silicon ingots in order to dope them with phosphorus and produce the basic material used in the manufacturing of semiconductor devices

## Austria

Nuclear research reactors in Austria :
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator |
| ASTRA | Vienna | Pool | Decommissioned | 10,000 | 1960-09-24 | 1999 | Austrian Research Centers at Seibersdorf |
| SAR-Graz | Graz | Argonaut | Decommissioned | 10 | 1965-05-17 | 2004 | Reactor Institute of the Technical Universities in Graz |
| TRIGA II VIENNA | Vienna | TRIGA Mark II | Operational | 250 | 1962-03-07 | | Atomic Institute of the Austrian Universities in Vienna |

## Bangladesh

Nuclear research reactors in Bangladesh :
| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| BTRR, BAEC TRIGA Research Reactor | Savar, Dhaka | TRIGA Mark II | | Operational | 3,000 | 1986-09-14 | | Atomic Energy Research Establishment (Bangladesh) | |

## Belarus

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Notes |
| IRT-M Minsk | Sosny, Minsk | Pool, irt | Decommissioned | 5000 | 1962-04-01 | 1988 | IRT research reactor |
| Kristal | Sosny, Minsk | Crit assembly | Extended shutdown | 0 | | | |
| YALINA-Thermal | Sosny, Minsk | Subcrit | Operational | 0 | 2000-01-01 | | |
| Giacint | Sosny, Minsk | Crit assembly | Operational | 0 | 2009-01-01 | | |
| YALINA-Booster | Sosny, Minsk | Subcrit | Operational | 0 | 2005-05-30 | | |
| "Pamir" | Sosny, Minsk | Subcrit | Shut down | | | 1986 | mobile nuclear power reactor test |

## Belgium

* GUINEVERE – fast, accelerator driven, lead-cooled reactor at SCK•CEN, Mol
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Notes |
| VENUS-F | Mol | Crit assembly | Operational | 0.10 | 1964-04-30 | zero power critical facility, converted to GUINEVERE, at SCK•CEN, Mol |
| BR-1 | Mol | Graphite | Operational | 1,000 | 1956-05-11 | 4MWt air-cooled, graphite moderated research reactor at SCK•CEN, Mol |
| BR-2 | Mol | Tank in pool | Operational | 100,000 | 1961-06-29 | 125MWt water-cooled, beryllium moderated material testing research reactor at SCK•CEN, Mol |
| MYRRHA | Mol | Fast | Planned | 85,000 | | |
| BR-3 | Mol | Pwr power | Decommissioned | 40,900 | 1962-08-29 | 11MWe PWR reactor (shut down and fully decommissioned) at SCK•CEN, Mol |
| BR-02, Mock-up of BR2 | Mol | Pool | Decommissioned | 0.50 | 1959-12-01 | |
| THETIS RR-BN-1 | Ghent | Pool | Decommissioned | 250 | 1967-04-07 | 250kWt pool type reactor (shut down and fully decommissioned) at Ghent university (51°1′25.71″N 3°44′21.96″E﻿ / ﻿51.0238083°N 3.7394333°E﻿ / 51.0238083; 3.7394333) |

## Brazil

Nuclear research reactors in Brazil :
| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| Argonauta | Rio de Janeiro | Argonaut | | Operational | 0.20 | 1965-02-20 | - | IEN - Instituto de Engenharia Nuclear | |
| IEA-R1 | São Paulo | Pool | | Operational | 6,000 | 1957-09-16 | - | IPEN - Instituto de Pesquisas Energéticas e Nucleares | |
| TRIGA IPR-R1 | Belo Horizonte | Pool (TRIGA Mark I) | Education, research, training and production of radioisotopes | Operational | 100* | 1960-11-06 | - | CDTN - Centro de Desenvolvimento de Tecnologia Nuclear | *The expansion to 250 KW is in the licensing process, for which a new refrigeration system has been installed. |
| RMB - Reator Multipropósito Brasileiro | Iperó(CTMSP - Centro Tecnológico da Marinha em São Paulo) | Pool | | Operational | 35,000 | 1978-05-21 | - | Amazul S.A.; CNEN - Comissão Nacional de Energia Nuclear | |
| IPEN/MB-01 | São Paulo | Pool | | Operational | 0.10 | 1988-11-09 | - | IPEN - Instituto de Pesquisas Energéticas e Nucleares | |

## Bulgaria

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| IRT-Sofia | Sofia | Pool, irt | | Permanent shutdown | 2,000 | 1961-09-18 | 2009 | Bulgarian Academy of Sciences | |

## Canada

Nuclear research reactors in Canada :
| Name | Reactor type | Status | Capacity | Operation date | Closure | Operator and owner | Notes |
| MAPLE 1 | Medical isotope production reactor | Finished; never entered service | | 2000 | 2008 | Chalk River Laboratories | Incomplete commissioning, never completed testing. However, criticality was achieved |
| MAPLE 2 | Medical isotope production reactor | Finished; never entered service | | 2003 | 2008 | Chalk River Laboratories | Incomplete commissioning, never completed testing. However, criticality was achieved |
| NRU | Heavy water cooled/moderated | Shut down | 135 MW | 1957 | 2018 | Chalk River Laboratories | |
| NRX | Heavy water moderated, light water cooled | Shut down | 42 MW | 1947 | 1993 | Chalk River Laboratories | One of the highest flux reactors in the world until shut down |
| SLOWPOKE-1 prototype | Pool Type | Shut down | 5 kW | | | Chalk River Laboratories, University of Toronto | The prototype was moved to the University of Toronto in 1971 |
| PTR | Pool type | Shut down | | | 1990 | Chalk River Laboratories | |
| ZED-2 | | Operational | 200 Wth | 1960 | | Chalk River Laboratories | |
| ZEEP | Heavy water | Shut down | 0 | 1945 | 1973 | Chalk River Laboratories | The first nuclear reactor in Canada, and first outside the United States |
| WR-1 | Organically cooled CANDU | Shut down | | 1965 | 1985 | Whiteshell Laboratories | Coolant leak of 2,739 litres in Nov. 1978. |
| SLOWPOKE-3 demonstration | Pool type | Shut down | 2 MWth | 1987 | 1989 | Whiteshell Laboratories | |
| SLOWPOKE-2 | Pool type | Shut down | 0 | 1981 | 2017 (start of decommissioning) | Saskatchewan Research Council | On 17 January 2018, the reactor surpassed 20,000 hours of operation. |
| SLOWPOKE-2 | Pool type | Shut down | 20 kW | 1984 | 1989 | Nordion | |
| SLOWPOKE-2 prototype | Pool type | Shut down | 20 kW | 1971 | | Tunney's Pasture | |
| SLOWPOKE-2 | Pool type | Shut down | 20 kW | 1976 | | Dalhousie University | |
| SLOWPOKE-2 | Pool type | Operational | 0 | 1976 | | École Polytechnique de Montréal | |
| McMaster Nuclear Reactor | SLOWPOKE-2 pool type | Operational | 5 MWth | 1959 | | McMaster University | |
| SLOWPOKE-2 | Pool type | Operational | 20 kW | 1985 | | Royal Military College | |
| SLOWPOKE-2 | Pool type | Shut down | 20 kW | 1977 | 2017 | University of Alberta | |
| SLOWPOKE-2 | Pool type | Shut down | 20 kW | 1976 | 2001 | University of Toronto | Rebuilt from SLOWPOKE-1 |
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| Ecole Polytechnique Subcritical Assembly | Montreal | Subcrit | Decommissioned | 0.00 | 1974-01-01 |
| SLOWPOKE-2, Kanata | Ottawa | Slowpoke-2 | Decommissioned | 20 | 1984-06-06 |
| PTR | Chalk River | Pool | Decommissioned | 0.10 | 1957-11-01 |
| SLOWPOKE-2, Halifax | Halifax | Slowpoke-2 | Decommissioned | 20 | 1976-07-08 |
| WR-1 | Pinawa | Heavy water | Under decommissioning | 60,000 | 1965-11-01 |
| SLOWPOKE-2, Toronto | Toronto | Slowpoke-2 | Decommissioned | 20 | 1971-06-05 |
| SLOWPOKE, Alberta | Edmonton | Slowpoke-2 | Under decommissioning | 20 | 1977-04-22 |
| ZEEP | Chalk River | Heavy water | Decommissioned | 0.00 | 1945-09-01 |
| SLOWPOKE-2, RMC | Kingston | Slowpoke-2 | Operational | 20 | 1985-09-06 |
| NRU | Chalk River | Heavy water | Permanent shutdown | 135,000 | 1957-11-03 |
| MAPLE 1 | Chalk River | Tank in pool | Permanent shutdown | 10,000 | |
| MAPLE 2 | Chalk River | Tank in pool | Permanent shutdown | 10,000 | |
| NRX | Chalk River | Heavy water | Permanent shutdown | 42,000 | 1947-07-22 |
| SLOWPOKE-2, Montreal | Montreal | Slowpoke-2 | Operational | 20 | 1976-05-01 |
| SRC SLOWPOKE, Saskatchewan | Saskatoon | Slowpoke-2 | Permanent shutdown | 20 | 1981-03-01 |
| SDR SLOWPOKE Demo Reactor | Pinawa | Heating prot | Decommissioned | 2,000 | 1987-07-15 |
| ZED-2 | Chalk River | Tank | Operational | 0.20 | 1960-09-07 |
| MNR McMaster University | Hamilton | Pool, mtr | Operational | 3,000 | 1959-04-04 |

## Chile

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RECH-1 | Santiago | Pool | | Operational | 5,000 | 1974-10-13 | | Chilean Nuclear Energy Commission (CChEN) | |
| RECH-2 | Santiago | Pool | | Extended shutdown | 2,000 | 1989-09-06 | | Chilean Nuclear Energy Commission (CChEN) | Pool-type reactor, 10 MW MTR – Comisión Chilena de Energía Nuclear, Santiago (criticality 1977, refurbished 1989), currently in extended shutdown |

## China

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Notes |
| MNSR IAE | Beijing | Mnsr | Operational | 27 | 1984-03-10 | |
| IHNI-1 | Beijing | Mnsr | Operational | 30 | 2009-12-07 | |
| ZPR Fast | Beijing | Crit fast | Extended shutdown | 0.05 | 1970-06-29 | |
| MNSR-SH | Shanghai | Mnsr | Decommissioned | 30 | 1991-12-18 | |
| MNSR-SD | Jinan | Mnsr | Decommissioned | 33 | 1989-05-01 | |
| HWRR-II | Beijing | Heavy water | Under decommissioning | 15,000 | 1958-09-01 | |
| VENUS-1 | Beijing | Subcrit | Operational | 0.00 | 2005-07-18 | |
| CARR | Beijing | Tank in pool | Operational | 60,000 | 2010-05-13 | |
| CEFR | Beijing | Fast breeder | Operational | 65,000 | 2010-07-21 | Chinese experimental fast reactor (65 MW, 20 MWe, sodium cooled fast-spectrum neutron reactor). Located at CIAE Beijing, construction started May 2000, first criticality July 2010. |
| MNSR-SZ | Shenzhen | Mnsr | Operational | 30 | 1988-11-01 | |
| SPR IAE | Beijing | Pool | Operational | 3,500 | 1964-12-20 | |
| CMRR (China Mianyang Research Reactor) | Mianyang | Pool | Operational | 20,000 | 2013-09-01 | |
| HTR-10 | Beijing | High temp gas | Operational | 10,000 | 2000-12-21 | |
| MJTR | Chengdu | Pool | Operational | 5,000 | 1991-03-02 | |
| ESR-901 | Beijing | Pool-2 Cores | Operational | 1,000 | 1964-10-01 | |
| NHR-5 | Beijing | Heating Prot | Operational | 5,000 | 1989-11-03 | |
| SPRR-300 | Chengdu | Pool | Operational | 3,000 | 1979-06-28 | |
| HFETR Critical | Chengdu | Crit assembly | Operational | 0.00 | 1979-06-20 | |
| PPR PULSING | Chengdu | Pool, uzrh | Operational | 1,000 | 1990-08-01 | |
| HFETR | Chengdu | Tank | Operational | 125,000 | 1979-12-27 | |
| Zero Power Reactor | Chengdu | Crit assembly | Permanent shutdown | 0.00 | 1966-01-01 | |
| TMSR-SF1 | Shanghai | Experimental | Planned | 10,000 | | |
| TMSR-LF1 | Shanghai | Experimental | Planned | 2,000 | | |
| TFHR Thorium Pebble Bed | Shanghai | Experimental | Planned | 2,000 | | |

## Democratic Republic of the Congo

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| TRICO II | Kinshasa | Triga Mark II | | Extended shutdown | 1,000 | 1972-03-24 | | CREN-K University of Kinshasa | Extended shutdown since 2004 |
| TRICO I | Kinshasa | Triga Mark I | | Permanent shutdown | 50 | 1959-06-06 | 1970; | CREN-K University of Kinshasa | |

## Czech Republic

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| VR-1 | Prague | Pool | Training reactor | Operational | 0.50 | 1990-03-12 | Czech Technical University | |
| VR-2 | Prague | Subcrit | | Operational | 0.00 | 2023-07-06 | | |
| LVR-15 | Řež | Tank wwr | | Operational | 10,000 | 1957-09-24 | | A VVR-SM type reactor |
| SR-0 | Plzeň | Pool | | Decommissioned | 1.00 | 1971-01-01 | | |
| TR-0 | Řež | Tank | | Decommissioned | 0.30 | 1972-01-01 | | |
| LR-0 | Řež | Pool - Variable Core | | Operational | 5 | 1982-12-19 | | |

## Denmark

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| DR-3 | Roskilde | Heavy water | Under decommissioning | 10,000 | 1960-01-16 | | Risø | DIDO class experimental reactor (shut down permanently in 2000) |
| DR-2 | Roskilde | Pool | Decommissioned | 5,000 | 1958-12-18 | 1975 | | |
| DR-1 | Roskilde | Homog (L) | Decommissioned | 2 | 1957-08-15 | 2001 | | |

## Egypt

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| ETRR-1 | Cairo | Tank wwr | | Extended shutdown | 2,000 | 1961-02-08 | | Nuclear Research Center at Inshas | |
| ETRR-2 | Cairo | Pool | | Operational | 22,000 | 1997-11-27 | | Nuclear Research Center at Inshas | Built by Argentine INVAP |

## Estonia

* Paldiski – 2 PWR naval training reactors (dismantled)

## Finland

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| FiR 1 | Espoo | TRIGA Mark II | | Under decommissioning | 250 | 1962-03-27 | 2015 | VTT Technical Research Centre of Finland | |
| SCA | Helsinki | Subcrit | | Decommissioned | 0.00 | 1963-07-30 | | | |

## France

Working:
* Azur at Cadarache
* Cabri at Cadarache
* Eole at Cadarache
* Masurca at Cadarache
* Minerve at Cadarache
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| Jules Horowitz Reactor | Saint-Paul-les-Durance | Tank in pool | Under construction | 100,000 | | | |
| Orphee | Saclay Nuclear Research Centre, Gif-sur-Yvette | Pool | Permanent shutdown | 14,000 | 1980-12-19 | Saclay Nuclear Research Centre | |
| Minerve | Saint-Paul-lès-Durance | Pool | Under decommissioning | 0.10 | 1959-09-29 | | |
| Éole | Saint-Paul-lès-Durance | Tank in pool | Under decommissioning | 1.00 | 1965-12-02 | | |
| Aquilon | Gif-sur-Yvette | Crit fast | Decommissioned | 0.10 | 1956-08-11 | | |
| Osiris | Gif-sur-Yvette | Pool | Under decommissioning | 70,000 | 1966-09-08 | | |
| Ulysse | Gif-sur-Yvette | Argonaut | Under decommissioning | 100 | 1961-07-27 | | |
| Silene | Dijon | Homog (L) | Permanent shutdown | 1.00 | 1974-01-01 | | |
| Mirene | Dijon | Homog (L) | Decommissioned | 0.00 | 1975-01-01 | | |
| Strasbourg-Cronenbourg | Strasbourg | Argonaut | Decommissioned | 100 | 1966-11-22 | | |
| Pegase | Saint-Paul-lès-Durance | Tank | Permanent shutdown | 30,000 | 1963-04-01 | | |
| EL-2 | Saclay | Tank | Decommissioned | 2,500 | 1952-01-01 | | |
| Zoé (EL1) | Fontenay-aux-Roses | Heavy water | Decommissioned | 150 | 1948-12-15 | | The first French nuclear reactor (1948) |
| Scarabee | Cadarache | Pool | Decommissioned | 100,000 | 1982-01-01 | | |
| Phebus | Aix-en-Provence | Pool | Under decommissioning | 38,000 | 1978-08-09 | | |
| Cabri | Saint-Paul-lès-Durance | Pool | Operational | 25,000 | 1963-01-01 | | |
| ILL High Flux Reactor | Grenoble | Heavy water | Operational | 58,300 | 1971-07-01 | Institut Laue-Langevin | Réacteur à Haut Flux (RHF), currently the world's most intense source of neutrons and the source of the most intense neutron flux |
| Masurca | Saint-Paul-lès-Durance | Crit fast | Temporary shutdown | 5 | 1966-12-14 | | |
| Isis | Saclay Nuclear Research Centre, Gif-sur-Yvette | Pool | Operational | 700 | 1966-04-28 | Saclay Nuclear Research Centre | |
| Harmonie | Saint-Paul-lès-Durance | Tank | Decommissioned | 1.00 | 1965-08-01 | | |
| Rapsodie | Cadarache | Fast, power | Under decommissioning | 40,000 | 1963-01-01 | | |
| Siloette | Grenoble | Pool | Decommissioned | 100 | 1964-02-01 | | |
| Cesar | Saint-Paul-les-Durance | Crit assembly | Decommissioned | 10 | 1964-12-01 | | |
| EL 4 | Carhaix-Plouguer | Heavy water | Under decommissioning | 267,000 | 1966-12-01 | | |
| Siloe | Grenoble | Pool | Decommissioned | 35,000 | 1963-03-18 | | |
| Nereide | Fontenay-aux-Roses | Pool | Decommissioned | 500 | 1960-09-15 | | |
| Marius | Saint-Paul-les-Durance | Crit assembly | Decommissioned | 0.40 | 1960-01-01 | | |
| Triton | Fontenay-aux-Roses | Pool | Decommissioned | 6,500 | 1959-06-29 | | |
| Melusine | Grenoble | Pool | Decommissioned | 8,000 | 1958-07-01 | | |
| EL 3 | Saclay | Heavy water | Decommissioned | 18,000 | 1957-01-01 | | |
| Proserpine | Gif-sur-Yvette | Homog (L) | Decommissioned | 0.00 | 1958-03-17 | | |
| Alecto | Gif-sur-Yvette | Homog (L) | Decommissioned | 0.00 | 1961-01-01 | | |
| Peggy | Saint-Paul-les-Durance | Crit assembly | Decommissioned | 1.00 | 1961-06-01 | | |
| Alizee | Gif-sur-Yvette | Crit assembly | Permanent shutdown | 0.10 | 1959-06-18 | | |
| RNG New Generation Reactor | Saint-Paul-les-Durance | Bwr-prototype | Permanent shutdown | 120,000 | 1975-11-24 | | |
| PHENIX | Marcoule | Fast breeder | Under decommissioning | 563,000 | 1973-08-31 | | |
| G-1 | Bagnols-sur-Cèze | Graphite pile | Under decommissioning | 46,000 | 1956-01-07 | | |
| Rachel | Dijon | Crit fast | Decommissioned | 0.10 | 1961-04-01 | | |
| Rubeole | Gif-sur-Yvette | Crit assembly | Decommissioned | 0.10 | 1959-07-03 | | |

## Georgia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| IRT-M Tbilisi | Tbilisi | Pool, irt | | Decommissioned | 8,000 | 1959-10-01 | | | |

## Germany

* AKR II – Ausbildungskernreaktor II, Technische Universität Dresden; rating: 2 W, commissioned 2005
* AVR – Arbeitsgemeinschaft Versuchsreaktor, Forschungszentrum Jülich; rating: 15 MW, commissioned 1969; closed 1988
* BER II – Berliner-Experimentier-Reaktor II, Helmholtz-Zentrum Berlin für Materialien und Energie; rating: 10 MW, commissioned 1990, closed 2019
* FRG-1 (see GKSS Research Center) – Geesthacht; rating: 5 MW, commissioned 1958
* FRM II – Technische Universität München; rating: 20 MW, commissioned 2004
* FRMZ – TRIGA of the University of Mainz, Institute of Nuclear Chemistry; continuous rating: 0.10 MW, pulse rating for 30ms: 250 MW; commissioned 1965
* FR2 - Forschungsreaktor 2; rating: 44 MW; commissioned 1957; closed: 1981
* SUR-FW "Neutron"; Hochschule Furtwangen University; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1973
* SUR-S; University of Stuttgart; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1964
* SUR-U; Ulm University of Applied Sciences; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1965

### Planned

* Wyhl, planned nuclear plant that was never built because of long-time resistance by the local population and environmentalists.
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| FRM II | Garching | Pool | Temporary shutdown | 20,000 | 2004-03-02 |
| FRM | Garching | Pool | Under decommissioning | 4,000 | 1957-10-31 |
| RFR | Dresden / Rossendorf | Tank wwr | Decommissioned | 10,000 | 1957-12-16 |
| SUR Hannover | Hanover | Homog (S) | Decommissioned | 0.00 | 1971-12-09 |
| BER-II | Berlin | Pool | Permanent shutdown | 10,000 | 1973-12-09 |
| FRMZ | Mainz | Triga Mark Ii | Operational | 100 | 1965-08-03 |
| ANEX | Munich | Crit assembly | Decommissioned | 0.10 | 1964-05-01 |
| FRF-1 | Frankfurt am Main | Homog | Decommissioned | 50 | 1958-01-01 |
| SAR | Munich | Argonaut | Decommissioned | 1.00 | 1959-06-01 |
| BER-I | Berlin | Homog (L) | Decommissioned | 50 | 1958-07-24 |
| TRIGA HD I | Heidelberg | Triga Mark I | Decommissioned | 250 | 1966-08-01 |
| ZLFR | Zittau | Tank | Decommissioned | 0.01 | 1979-05-25 |
| AKR-2 | Dresden | Homog (S) | Operational | 0.00 | 1978-07-28 |
| RAKE | Dresden/Rossendorf | Tank | Decommissioned | 0.01 | 1969-10-03 |
| RRR | Dresden/Rossendorf | Argonaut | Decommissioned | 1.00 | 1962-12-16 |
| STARK | Karlsruhe | Argonaut | Decommissioned | 0.01 | 1963-01-01 |
| FRF-2 | Frankfurt am Main | Triga conv | Decommissioned | 1,000 | 1977-10-01 |
| SUR Furtwangen | Furtwangen im Schwarzwald | Homog (S) | Operational | 0.00 | 1973-03-28 |
| KAHTER | Jülich | Crit assembly | Decommissioned | 0.10 | 1973-07-02 |
| KEITER | Jülich | Crit assembly | Decommissioned | 0.00 | 1971-06-15 |
| FRH | Hanover | Triga Mark I | Decommissioned | 250 | 1973-01-31 |
| AEG Nullenergie Reaktor | Karlstein am Main | Tank | Decommissioned | 0.10 | 1967-06-01 |
| ADIBKA (L77A) | Jülich | Homog (L) | Decommissioned | 0.10 | 1967-03-18 |
| SUR Bremen | Bremen | Homog (S) | Decommissioned | 0.00 | 1967-10-10 |
| SUR Karlsruhe | Karlsruhe | Homog (S) | Decommissioned | 0.00 | 1966-03-07 |
| SUR Ulm | Ulm | Homog (S) | Operational | 0.00 | 1965-12-01 |
| SUR Kiel | Kiel | Homog (S) | Decommissioned | 0.00 | 1966-03-29 |
| SUR Hamburg | Hamburg | Homog (S) | Decommissioned | 0.00 | 1965-01-06 |
| SUR Aachen | Aachen | Homog (S) | Permanent shutdown | 0.00 | 1965-09-22 |
| NS Otto Hahn | Geesthacht | Pwr propulsion | Decommissioned | 38,000 | 1968-08-26 |
| SNEAK | Karlsruhe | Homog (S) | Decommissioned | 0.00 | 1966-12-01 |
| TRIGA HD II | Heidelberg | Triga Mark I | Decommissioned | 250 | 1978-02-28 |
| SUR Stuttgart | Stuttgart | Homog (S) | Operational | 0.00 | 1964-04-24 |
| FRG-2 | Geesthacht | Pool | Under decommissioning | 15,000 | 1963-03-15 |
| SUR Munich | Munich | Homog (S) | Decommissioned | 0.00 | 1962-02-01 |
| PR-10 AEG Prüfreaktor | Karlstein am Main | Argonaut | Decommissioned | 0.18 | 1961-01-01 |
| FRJ-1 (MERLIN) | Jülich | Pool | Decommissioned | 10,000 | 1962-02-24 |
| FRJ-2 (DIDO) | Jülich | Heavy water | Under decommissioning | 23,000 | 1962-11-14 |
| FRG-1 | Geesthacht | Pool | Under decommissioning | 5,000 | 1958-10-23 |
| SUR Berlin | Berlin | Homog (S) | Decommissioned | 0.00 | 1963-07-01 |
| SUAK | Karlsruhe | Subcrit | Decommissioned | 0.00 | 1964-11-20 |
| SUR Darmstadt | Darmstadt | Homog (S) | Decommissioned | 0.00 | 1963-09-01 |
| SUA | Munich | Subcrit | Decommissioned | 0.00 | 1959-06-01 |
| FR-2 | Karlsruhe | Tank | Under decommissioning | 44,000 | 1961-03-07 |
| FRN | Munich | Triga Mark Iii | Under decommissioning | 1,000 | 1972-08-23 |
| FMRB | Braunschweig | Pool | Under decommissioning | 1,000 | 1967-10-03 |

## Ghana

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| GHARR-1 | Accra | Mnsr | | Operational | 30 | 1994-12-17 | | | |

## Greece

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| Demokritos (GRR-1) | Athens | Pool | Extended shutdown | 5,000 | 1961-07-27 | Demokritos National Centre for Scientific Research | ; |
| NTU | Athens | Subcrit | Permanent shutdown | 0.10 | 1970-10-10 | | |
| GR-B Subcritical Assembly | Thessaloniki | Subcrit | Operational | 0.00 | 1971-08-04 | | |

## Hungary

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| Budapest Research Reactor | Budapest | Tank wwr | Operational | 10,000 | 1959-03-25 | KFKI Atomic Energy Research Institute (see KFKI | Archived 25 June 2014 at the Wayback Machine) – (10 MW VVR-SM Budapest Research Reactor) |
| Nuclear Training Reactor | Budapest | Pool | Operational | 100 | 1971-05-22 | Technical University of Budapest (BME) | Institute of Nuclear Techniques – University Research Reactor |
| ZR-6M | NA | Crit assembly | Decommissioned | 0.00 | 1972-11-28 | | |

## India

* Bhabha Atomic Research Center (BARC) – Trombay
** Apsara reactor – Asia's first nuclear reactor. 1 MW, pool type, light water moderated, enriched uranium fuel supplied by France
** CIRUS reactor – 40 MW, supplied by Canada, heavy water moderated, uses natural uranium fuel
** Dhruva reactor – 100 MW, heavy water moderated, uses natural uranium fuel
** Purnima series
* Indira Gandhi Center for Atomic Research (IGCAR) – Kalpakkam
** PFBR – 500MWe Sodium cooled fast breeder nuclear reactor, under construction. Expected completion 2015.
** FBTR – 40 MW Fast Breeder Test Reactor, uses mixed (plutonium and uranium) carbide fuel
** KAMINI –30 kW, uses U-233 fuel
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| PURNIMA-III | Mumbai | Tank | Decommissioned | 0.00 | 1990-09-11 |
| Apsara | Mumbai | Pool | Decommissioned | 1,000 | 1956-08-04 |
| Apsara-U | Mumbai | Pool | Operational | 2,000 | 2018-09-10 |
| High Flux RR | Visakhapatnam | Pool | Planned | 40,000 | |
| Critical Facility for AHWR and PHWR | Mumbai | Tank | Operational | 0.10 | 2008-04-07 |
| Dhruva | Mumbai | Heavy water | Operational | 100,000 | 1985-08-08 |
| CIRUS | Mumbai | Heavy water | Permanent shutdown | 40,000 | 1960-07-10 |
| KAMINI | Kalpakkam | U-233 fuelled | Operational | 30 | 1996-10-29 |
| FBTR | Kalpakkam | Fast breeder | Operational | 40,000 | 1985-10-18 |
| PURNIMA-II | Mumbai | Homog (L) | Decommissioned | 0.01 | 1984-05-10 |
| PURNIMA | Mumbai | Fast | Decommissioned | 0.00 | 1972-05-01 |
| ZERLINA | Kalpakkam | Tank | Decommissioned | 0.10 | 1961-01-01 |
| Thermal RR | Visakhapatnam | Pool | Planned | 125,000 | |

## Indonesia

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Notes |
| RSG-GAS | South Tangerang | Pool, mtr | Operational | 30,000 | 1987-07-29 | SIWABESSY 30MWh Multi-Purpose Reactor (installed 1987) |
| KARTINI-PSTA | Sleman | TRIGA Mark II | Operational | 100 | 1979-01-25 | |
| TRIGA Mark II, Bandung | Bandung | TRIGA Mark II | Operational | 2,000 | 1964-10-19 | 2MW installed 1997 |

## Iran

* Tehran – AMF reactor at Tehran Nuclear Research Center (supplied by USA, 1967)
* Isfahan, Nuclear Technology Center (mainly supplied by China)
** MNSR – 27 kW miniature neutron source reactor
** light water subcritical reactor (LWSCR)
** heavy water zero power reactor (HWZPR)
** graphite subcritical reactor (GSCR)
* Arak – IR-40 heavy water-moderated reactor (under construction, planned commissioning 2014)
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| ENTC LWSCR | Isfahan | Subcrit | Operational | 0.00 | 1992-01-01 |
| Tehran Research Reactor (TRR) | Tehran | Pool | Operational | 5,000 | 1967-11-01 |
| ENTC HWZPR | Isfahan | Crit assembly | Operational | 0.10 | 1995-06-01 |
| ENTC MNSR | Isfahan | Mnsr | Operational | 30 | 1994-03-01 |
| ENTC GSCR | Isfahan | Subcrit | Decommissioned | 0.00 | 1992-01-01 |

## Iraq

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Notes |
| TAMMUZ-1 | Baghdad | Pool | Permanent shutdown | 40,000 | 1987-03-01 | 40 MW thermal tank-pool research reactor(OSIRIS reactor). Destroyed in Operation Scorch Sword and Operation Opera (Supplied, fueled and serviced by France.) |
| TAMMUZ-2 | Baghdad | Pool | Permanent shutdown | 500 | 1987-03-01 | 500 KW ISIS neutron modelling module. Destroyed in Operation Desert Storm and Operation Iraqi Liberation (Supplied, fueled and serviced by France.) |
| IRT-5000 | Baghdad | Pool, irt | Permanent shutdown | 5,000 | 1967-01-01 | Destroyed in Operation Desert Storm and Operation Iraqi Liberation (supplied by The Soviet Union) |
Note: Tamuz-1 and Tamuz-2 are parts of the same French nuclear research complex design, the OSIRIS research complex. All three reactors were located at the same site.

## Israel

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| IRR-1 | Yavne | Pool | | Operational | 5,000 | 1960-06-16 | | Soreq Nuclear Research Center | 5 MW light water research reactor (supplied by USA, operational 1960) |
| IRR-2 | Yavne | Heavy water | | Operational | 26,000 | 1963-12-01 | | Negev Nuclear Research Center | EL-102 uranium/heavy water research reactor, 50-75 MWt (supplied by France, operational 1964, not under IAEA safeguards) |

## Italy

* Brasimone (Bologna) – PEC (Prove Esperimenti Combustibile - Fuel Test Experiments): ENEA Ente Nazionale Energia Atomica - National Atomic Energy Agency - Brasimone Research Center (1972–1987)
* Ispra (Varese) – ISPRA-1 (5 MW): European Commission Joint Research Centre (1959–1973)
* Ispra (Varese) – ECO (Essai Critique ORGEL, 1 kW): European Commission Joint Research Centre (1966–1983)
* Ispra (Varese) – ESSOR (ESSai ORrganique eau lourde, 25MW): European Commission Joint Research Centre (1967–1983)
* Legnaro (Padova) - RTS-1: INFN Istituto Nazionale di Fisica Nucleare - National Institute for Nuclear Physic (1963–1980)
* Milan - L-54 (50 kW): CeSNEF Centro Studi Nucleari "Enrico Fermi" - Politecnico di Milano (1957–1979)
* Montecuccolino (Bologna) - RB-1 (zero-power reactor): University of Bologna (1962–1985)
* Montecuccolino (Bologna) - RB-2 (1 kW): University of Bologna (1964–1985)
* Montecuccolino (Bologna) - RB-3 - Aquilone 11 (1 kW): University of Bologna (1971–1989)
* Pavia – TRIGA LENA (TRIGA Mk.II model, 250 kW): University of Pavia (1965 - operational)
* Palermo - AGN-201 "Costanza" (zero-power reactor): University of Palermo (1960 – operational)
* Saluggia (Vercelli) - AVOGADRO RS-1 ("Swimming Pool" model): FIAT/Montecatini (1959–1971)
* San Piero a Grado (Pisa) – RTS-1 "Galileo Galilei" ("Swimming Pool" model, 5MW): CAMEN Centro Applicazioni Militari Energia Nucleare - Center for Military Applications of Nuclear Energy (1963–1980)
* Santa Maria di Galeria (Roma) – ROSPO-2 (2 kW): ENEA Ente Nazionale Energia Atomica - Casaccia Research Center (1960–1975)
* Santa Maria di Galeria (Roma) – TRIGA RC-1 (modified TRIGA Mk.II model, 1MW): ENEA Ente Nazionale Energia Atomica - Casaccia Research Center (1960–1987, reactivated 2010)
* Santa Maria di Galeria (Roma) – RC-4 RITMO (0.01 kW): ENEA Ente Nazionale Energia Atomica - Casaccia Research Center (1965–1978)
* Santa Maria di Galeria (Roma) – RANA (10 kW): ENEA Ente Nazionale Energia Atomica - Casaccia Research Center (1965–1981)
* Santa Maria di Galeria (Roma) – TAPIRO (modified Argonne Fast Source Reactor model, 5 kW): ENEA Ente Nazionale Energia Atomica - Casaccia Research Center (1971–1987, reactivated 2010)
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| RSV TAPIRO | Rome | Fast source | Operational | 5 | 1971-04-04 |
| RANA | Rome | Pool | Decommissioned | 10 | 1965-02-15 |
| RB-3 | Bologna | Zero power D2O | Decommissioned | 0.10 | 1971-08-09 |
| TRIGA RC-1 | Rome | Triga Mark Ii | Operational | 1,000 | 1960-06-11 |
| LENA, TRIGA II PAVIA | Pavia | Triga Mark Ii | Operational | 250 | 1965-11-15 |
| ISPRA-1 | Ispra | Heavy water | Permanent shutdown | 5,000 | 1959-03-24 |
| SM-1 Subcritical Assembly | Pavia | Subcrit | Operational | 0.00 | 1961-01-01 |
| ROSPO 2 | Rome | Pool | Decommissioned | 0.20 | 1963-01-01 |
| Struttura Sottocritica | Padua | Subcrit | Decommissioned | 0.00 | 1962-01-01 |
| L-54M | Milan | Homog (L) | Under decommissioning | 50 | 1959-11-20 |
| RB-2 | Bologna | Argonaut | Decommissioned | 10 | 1963-05-28 |
| AGN-201 Costanza | Palermo | Homog (S) | Operational | 0.02 | 1960-02-12 |
| RITMO Reactor (RC-4) | Rome | Pool | Decommissioned | 0.01 | 1965-07-08 |
| Galileo Galilei RTS-1 | Pisa | Pool | Decommissioned | 5,000 | 1963-04-04 |
| RB-1 | Bologna | Crit graphite | Decommissioned | 20 | 1962-07-01 |
| Avogadro RS-1 | Saluggia | Pool, mtr | Decommissioned | 5,000 | 1959-09-10 |
| ECO (Orgel Critical Experiment) | Ispra | Crit fast | Under decommissioning | 2 | 1965-11-01 |
| ESSOR Nuclear Plant | Ispra | Heavy water | Under decommissioning | 43,000 | 1967-03-19 |

## Jamaica

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| UWI CNS SLOWPOKE | Mona | SLOWPOKE-2 reactor | | Operational | 20 | 1984-03-13 | | | |

## Japan

* Japan Atomic Energy Agency (JAEA) Reactors
** Tōkai JRR-2 (shut down)
** Tōkai JRR-3
** Tōkai JRR-4
** Tōkai JPDR (Japan Power Demonstration Reactor, shut down)
** Ōarai High-temperature engineering test reactor (HTTR)
** Ōarai JMTR (Japan Materials Testing Reactor)
** Naka JT-60 fusion reactor
** Nuclear Safety Research Reactor
** Fugen (ATR (Advanced Thermal Reactor), shut down)
** Jōyō (FBR)
** Monju (FBR)
* Kinki University
** UTR-KINKI
* Kyoto University
** KUR
* Musashi Institute of Technology (Tokyo City University)
** MITRR (TRIGA-II) (shut down 1990)
* Rikkyo University
** RUR (TRIGA-II) (shut down)
* University of Tokyo
** Yayoi (shut down)
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| TCA Tank Critical Assembly | Tōkai, Ibaraki | Crit assembly | Under decommissioning | 0.20 | 1962-08-23 | Japan Atomic Energy Agency (JAEA) | |
| FCA | Tōkai, Ibaraki | Crit fast | Under decommissioning | 2 | 1967-04-29 | Japan Atomic Energy Agency (JAEA) | |
| TRACY | Tōkai, Ibaraki | Pulsing | Under decommissioning | 10 | 1995-12-20 | Japan Atomic Energy Agency (JAEA) | |
| STACY | Tōkai, Ibaraki | Crit assembly | Temporary shutdown | 0.20 | 1995-02-23 | Japan Atomic Energy Agency (JAEA) | |
| JMTR | Oarai | Tank | Permanent shutdown | 50,000 | 1968-03-30 | Japan Atomic Energy Agency (JAEA) | |
| Toshiba NCA | Kawasaki | Crit assembly | Temporary shutdown | 0.20 | 1963-12-11 | | |
| JRR-4 | Tokai Mura | Pool | Under decommissioning | 3,500 | 1965-01-28 | Japan Atomic Energy Agency (JAEA) | |
| JOYO | Oarai | Fast, Na cooled | Temporary shutdown | 140,000 | 1977-04-24 | Japan Atomic Energy Agency (JAEA) | |
| KUR | Osaka | Tank | Operational | 5,000 | 1964-06-25 | | |
| KUCA | Osaka | Crit assembly | Operational | 0.10 | 1974-08-06 | | |
| HTTR | Oarai | High temp gas | Operational | 30,000 | 1998-10-11 | Japan Atomic Energy Agency (JAEA) | |
| JRR-3 | Tōkai, Ibaraki | Heavy water | Decommissioned | 10,000 | 1962-01-01 | Japan Atomic Energy Agency (JAEA) | |
| NSRR | Tōkai, Ibaraki | Triga Acpr | Operational | 300 | 1975-06-30 | | |
| YAYOI | Tokyo | Fast source | Under decommissioning | 2 | 1971-04-10 | | |
| DCA | Tokyo | Crit assembly | Under decommissioning | 1.00 | 1969-12-28 | | |
| JMTRC | NA | Pool | Decommissioned | 0.10 | 1965-10-01 | | |
| Musashi Reactor | Tokyo | Triga Mark Ii | Under decommissioning | 100 | 1963-01-30 | | |
| JRR-3M | Tokai | Pool | Operational | 20,000 | 1990-03-22 | | |
| TTR | Tokyo | Pool | Under decommissioning | 100 | 1962-03-13 | | |
| HTR | Tokyo | Pool | Under decommissioning | 100 | 1961-12-25 | | |
| TRIGA-II Rikkyo | Yokosuka | TRIGA Mark II | Under decommissioning | 100 | 1961-12-08 | | |
| UTR KINKI | Osaka | Argonaut | Operational | 0.00 | 1961-11-11 | | |
| JRR-2 | Tōkai, Ibaraki | Tank | Under decommissioning | 10,000 | 1960-10-01 | Japan Atomic Energy Agency (JAEA) | |
| VHTRC | Tōkai, Ibaraki | Crit assembly | Decommissioned | 0.01 | 1985-05-13 | Japan Atomic Energy Agency (JAEA) | |
| OCF Ozenji Critical Facility | Kawasaki | Crit assembly | Decommissioned | 0.10 | 1962-10-01 | | |
| MCF | Saitama | Crit assembly | Decommissioned | 0.20 | 1969-08-01 | | |
| JRR-1 | Tōkai, Ibaraki | Homog (L) | Decommissioned | 60 | 1957-08-27 | Japan Atomic Energy Agency (JAEA) | Japan Research Unit No. 1, shut down |
| SCA | Tōkai, Ibaraki | Crit assembly | Decommissioned | 0.20 | 1966-08-01 | Japan Atomic Energy Agency (JAEA) | |
| AHCF | Tōkai, Ibaraki | Crit assembly | Decommissioned | 0.01 | 1961-01-01 | Japan Atomic Energy Agency (JAEA) | |

## Jordan

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| JRTR | Amman | Tank in pool | | Operational | 5,000 | 2016-04-25 | | Jordan University of Science and Technology (JUST) – Ar Ramtha | Jordan's first nuclear reactor, 5 MW research reactor, supplied by South Korea, first critical 2015, operational 2016. |
| JSA - Jordan Subcritical Assembly | Amman | Subcrit | | Operational | 0.00 | 2013-06-07 | | Jordan University of Science and Technology (JUST) – Ar Ramtha | |

## Kazakhstan

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| IGR | Kurchatov | Graphite, pulse | Operational | 0.00 | 1960-06-01 | National Nuclear Center, Semipalatinsk Test Site | (Impulse Graphite Reactor) |
| WWR-K Almaty | Almaty | Pool | Operational | 6,000 | 1967-10-22 | Institute of Nuclear Physics of the National Nuclear Center | VVR-K – 10 MWe reactor |
| RA | Kurchatov | Tank | Permanent shutdown | 500 | 1987-01-01 | National Nuclear Center, Semipalatinsk Test Site | zirconium hydride moderated reactor (dismantled) |
| IVG.1M | Kurchatov | Pwr | Operational | 35,000 | 1972-09-19 | National Nuclear Center, Semipalatinsk Test Site | |
| WWR-K CF | Almaty | Crit assembly | Operational | 0.10 | 1972-12-01 | Institute of Nuclear Physics of the National Nuclear Center | |

## Latvia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| SRR Salaspils Research Reactor | Salaspils | Pool | | Under decommissioning | 5,000 | 1961-09-26 | | Salaspils, Nuclear Research Center | |
| RKS-25 | Salaspils | Pool | | Permanent shutdown | 0.03 | 1966-09-15 | | Salaspils, Nuclear Research Center | |

## Libya

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| IRT-1 | Tajoura | Pool, irt | | Temporary shutdown | 10,000 | 1981-08-28 | | Tajura Nuclear Research Center, REWDRC | (see ) – 10 MW research reactor (supplied by the USSR) |
| TNRC Critical Facility | Tajoura | Crit assembly | | Operational | 0.10 | | | | |

## Malaysia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| TRIGA Puspati (RTP) | Kajang, Kuala Lumpur | TRIGA Mark II | | Operational | 1,000 | 1982-06-28 | | Malaysian Institute of Nuclear Technology Research | |

## Mexico

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| Nuclear Chicago Mod 9000 | Mexico City | Subcrit | Operational | 0.00 | 1969-01-01 | National Polytechnic Institute | "Nuclear-Chicago Modelo 9000" subcritical research reactor |
| Chicago Modelo 9000 | Zacatecas | Subcrit | Extended shutdown | 0.00 | 1969-05-14 | Autonomous University of Zacatecas | |
| TRIGA Mark III | La Marquesa Ocoyoacac | TRIGA Mark III | Operational | 1,000 | 1968-11-08 | National Institute for Nuclear Research | |
| SUR-100 UNAM | Mexico City | Homog (S) | Decommissioned | 0.00 | 1972-09-22 | | |

## Morocco

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| MA-R1 | Rabat | TRIGA Mark II | | Operational | 2,000 | 2007-05-02 | | | |

## Netherlands

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator |
| HOR | Delft | Pool | Operational | 2,300 | 1963-04-25 | | Reactor Institute Delft, part of Delft University of Technology |
| HFR | Petten | Tank in pool | Operational | 45,000 | 1961-11-09 | | Owned: JRC Petten Operated: NRG |
| PALLAS | Petten | Na | Planned | 0.00 | | | Owned: JRC Petten Operated: NRG |
| LFR | Schagen | Argonaut | Under decommissioning | 30 | 1960-09-28 | 2010 | Owned: JRC Petten Operated: NRG |
| KRITO | Petten | Crit assembly | Decommissioned | 0.10 | 1963-03-29 | | Owned: JRC Petten Operated: NRG |
| BARN | Wageningen | Pool | Decommissioned | 100 | 1963-04-01 | 1980 | Wageningen University |
| ATHENE | Eindhoven | Argonaut | Decommissioned | 10 | 1969-02-03 | 1973 | Eindhoven University of Technology |
| KSTR | Arnhem | Aqueous breeder | Decommissioned | 1,000 | 1974-05-22 | 2003 | KEMA |
| Delphi | Delft | Subcrit | Operational | 0.00 | | | Reactor Institute Delft, part of Delft University of Technology |

## Nigeria

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| NIRR-1 | Zaria | Mnsr | | Operational | 30 | 2004-02-03 | | | |
| Multipurpose Research Reactor | Abuja | Pool | | Operational | 10,000 | 2010-06-15 | | | |

## North Korea

| Name | Location | Type | Purpose | Status | Thermal Power [kW] | Operation Date | Closure Date | Owner and Operator | Notes |
| IRT-2000 | Yongbyon | Heavy-water moderated research reactor | | Operating | 8,000 | 1965 | | | (supplied by USSR, 1965), 8 MW (2 MW 1965–1974, 4 MW 1974–1986), Not under IAEA safeguards |
| Yongbyon 1 | Yongbyon | | Magnox | Shut down | 5,000 | 1987 | 2007 | | 5 MWe Magnox reactor, provides power and district heating (active 1987–1994, reactivated 2003, and shut-down in July 2007), Not under IAEA safeguards |

## Norway

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator |
| JEEP II | Kjeller | Tank | Permanent shutdown | 2,000 | 1966-12-01 | 2018 | Institute for Energy Technology (IFE) |
| HBWR (Halden boiling water reactor) | Halden | Heavy water | Permanent shutdown | 20,000 | 1959-06-29 | 2018 | Institute for Energy Technology (IFE) |
| NORA | Kjeller | Crit assembly | Decommissioned | 0.05 | 1961-01-01 | 1967 | Institute for Energy Technology (IFE) |
| JEEP I | Kjeller | Heavy water | Decommissioned | 450 | 1951-06-01 | 1967 | Institute for Energy Technology (IFE) |

## Pakistan

Under IAEA safeguards
| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| PARR-2 | Islamabad | Mnsr | | Operational | 30 | 1989-11-02 | | PINSTECH | |
| PARR I | Islamabad | Pool | | Operational | 10,000 | 1965-12-21 | | PINSTECH | |
Not under IAEA safeguards
| Reactor | Type | MW | Location | Status |
| Khushab-I | HWR | Classified. Estimated: 50-70. | Khushab | Operational since 1998 |
| Khushab-II | HWR | Classified | Khushab | Operational since 2010 |
| Khushab-III | HWR | Classified | Khushab | Under construction |
| Khushab-IV | HWR | Classified | Khushab | Under construction |

## Panama

* USS Sturgis - floating nuclear power plant for Panama Canal (operating 1966 to 1976)

## Peru

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RP-10 | Lima | Pool | | Operational | 10,000 | 1988-11-30 | | | 10 MW pool-type material test reactor, located in Huarangal built by Argentine INVAP. First criticality in 1989. |
| RP-0 | Lima | Crit assembly | | Operational | 0.00 | 1978-07-20 | | | 1 W critical assembly, located in Lima, built by Argentine INVAP. First criticality in 1978. |

## Philippines

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| PRR-1 | Quezon City | Subcrit | | Operational | 0.00 | | | | 3 MW TRIGA-converted reactor, Quezon City. Managed by the Philippine Nuclear Research Institute (formerly Philippine Atomic Energy Commission). 1st criticality in August 1963, reactor conversion in March 1984, criticality after conversion in April 1988, shut down since 1988 for pool repairs, on extended shutdown at present. |

## Poland

* Ewa reactor - 10 MW VVR-SM research reactor (dismantled in 1995)
* Maria reactor - 30 MW research reactor
* Anna reactor - 10 kW research reactor (dismantled)
* Agata reactor - 10 W zero-power research reactor (dismantled)
* Maryla reactor - 100 W zero-power research reactor (dismantled)
* UR-100 reactor - 100 kW training reactor (dismantled)
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator |
| MARIA | Otwock | Pool | Operational | 30,000 | 1974-12-18 | National Center for Nuclear Research |
| HELENA | Otwock | Subcrit | Decommissioned | 0.00 | 1963-09-02 | |
| AGATA | Otwock | Pool | Decommissioned | 0.10 | 1973-05-05 | |
| PANNA | Otwock | Crit assembly | Decommissioned | 0.10 | 1963-01-01 | |
| MARYLA | Otwock | Pool | Decommissioned | 100 | 1963-12-29 | |
| EWA | Otwock | Tank wwr | Under decommissioning | 10,000 | 1958-06-14 | |

## Portugal

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RPI | Lisbon | Pool | | Permanent shutdown | 1,000 | 1961-04-25 | | Instituto Tecnológico e Nuclear | |

## Puerto Rico

* Mayagüez - TRIGA reactor (dismantled)
* Boiling Nuclear Superheater (BONUS) Reactor Facility, BONUS - superheated BWR (decommissioned). Listed on the U.S. National Register of Historic Places.

## Romania

* Institute for Nuclear Research, Mioveni, 110 km northwest of Bucharest - TRIGA reactor (capable consisting of either a 500 kW pulse ACPR core, or a 14 MW steady state core)
* National Institute for Research and Isotopic Separation, Govora, 170 km west of Bucharest - no research reactors, but instead devoted to heavy water production
* National Institute for Physics and Nuclear Engineering, IFIN-HH, Mǎgurele, 5 km southwest of Bucharest - a 2 MW VVR-S research reactor (shut down in April 2002, with decommissioning/dismantling started in 2013)
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| TRIGA II Pitești - SS Core | Pitești | Triga Ddal core | Operational | 14,000 | 1980-02-02 |
| TRIGA II Pitești - Pulsed | Pitești | Triga dual core | Operational | 500 | 1980-02-02 |
| HELEN | Bucharest | Subcrit | Decommissioned | 0.00 | 1969-01-01 |
| VVR-S Bucharest | Bucharest | Tank wwr | Under decommissioning | 2,000 | 1957-07-01 |
| RP-01 | Bucharest | Tank | Decommissioned | 0.00 | 1976-02-01 |

## Russia

A total of 98 nuclear research facilities, including:
* T-15 fusion reactor at Kurchatov Institute
* VVR-M 18 MW reactor at St. Petersburg Institute of Nuclear Physics
* IBR-2 2 MW pulsed reactor at Joint Institute for Nuclear Research
* SM, Arbus (ACT-1), MIR.M1, RBT-6, RBT-10 / 1, RBT-10 / 2, BOR-60 and VK-50 Research Institute of Atomic Reactors
| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| Stend-7 | Electrostal | Crit assembly | Decommissioned | 0.70 | 1979-01-01 |
| FS-2 | Moscow | Subcrit | Permanent shutdown | 0.20 | 1972-10-17 |
| WWR-M | Gatchina | Tank wwr | Extended shutdown | 18,000 | 1959-12-29 |
| PIK Physical Model | Gatchina | Crit assembly | Operational | 0.10 | 1983-12-26 |
| PIK | Saint Petersburg | Tank | Under construction | 100,000 | |
| BFS-1 | Obninsk | Crit assembly | Operational | 0.20 | 1962-02-20 |
| 659-L | Nizhny Novgorod | Crit assembly | Decommissioned | 0.00 | 1979-01-01 |
| Stend-6 | Electrostal | Crit assembly | Decommissioned | 0.05 | 1968-01-01 |
| Stend-3 | Electrostal | Crit assembly | Decommissioned | 2 | 1967-01-01 |
| Stend-2 | Electrostal | Crit assembly | Decommissioned | 2 | 1969-01-01 |
| Stend-1 | Electrostal | Crit assembly | Decommissioned | 2 | 1966-01-01 |
| SGO | Obninsk | Crit assembly | Decommissioned | 0.10 | 1969-01-01 |
| RF-GS | Obninsk | Crit assembly | Decommissioned | 0.01 | 1962-01-01 |
| COBRA | Obninsk | Crit assembly | Decommissioned | 0.30 | 1970-01-01 |
| BR-1 | Obninsk | Crit assembly | Decommissioned | 0.05 | 1965-01-01 |
| AMBF-2 | Obninsk | Crit assembly | Decommissioned | 0.10 | 1984-11-22 |
| STRELA | Obninsk | Crit assembly | Decommissioned | 0.02 | 1968-08-14 |
| BFS-2 | Obninsk | Crit assembly | Operational | 1.00 | 1969-09-30 |
| BARS-6 | Obninsk | Prompt burst | Operational | 10 | 1994-12-30 |
| FG-5 | Obninsk | Crit assembly | Decommissioned | 0.10 | 1967-01-01 |
| 27/VT | Obninsk | Fast, power | Under decommissioning | 70,000 | 1959-01-01 |
| TOPAZ | Obninsk | Space test | Decommissioned | 150 | 1966-01-01 |
| BR-10 | Obninsk | Loop type | Permanent shutdown | 8,000 | 1958-06-01 |
| Stend-5 | Electrostal | Crit assembly | Operational | 0.30 | 1967-04-20 |
| IIN-3M | Moscow | Prompt burst | Decommissioned | 0.00 | 1972-01-01 |
| TOPAZ-II (YENISEY) | Moscow | Space test | Decommissioned | 135 | 1967-01-01 |
| Stend-4 | Electrostal | Crit assembly | Operational | 0.03 | 1967-04-20 |
| AM-1 | Obninsk | Graphite | Under decommissioning | 10,000 | 1954-06-15 |
| BARS-3M | Moscow | Prompt burst | Decommissioned | 0.00 | 1988-01-01 |
| 27/VM | Obninsk | Pwr power | Under decommissioning | 70,000 | 1956-03-01 |
| 659 | Nizhny Novgorod | Crit assembly | Operational | 0.10 | 1963-06-15 |
| 1125 | Nizhny Novgorod | Crit assembly | Operational | 0.60 | 1975-11-17 |
| TIBR-1M | Moscow | Prompt burst | Decommissioned | 0.00 | 1976-01-01 |
| IFR (IBR-1) | Moscow | Fast | Decommissioned | 6 | 1960-06-01 |
| IBR-30 | Dubna | Fast, pulsed | Decommissioned | 25 | 1969-01-01 |
| BARS-2 | Moscow | Prompt burst | Decommissioned | 0.00 | 1971-01-01 |
| IR-50 | Moscow | Pool | Permanent shutdown | 50 | 1961-02-20 |
| WWR-TS | Obninsk | Tank wwr | Operational | 15,000 | 1964-11-04 |
| IBR-2M | Dubna | Fast, pulsed | Operational | 2,000 | 1978-12-15 |
| BARS-4 | Moscow | Prompt burst | Temporary shutdown | 10 | 1980-06-03 |
| IRV-2M | Moscow | Pool | Under construction | 4,000 | 1974-12-28 |
| SM-3 | Dimitrovgrad | Pressure vessel | Operational | 100,000 | 1961-01-10 |
| Gidra (Hydra) | Moscow | Homog (L) | Operational | 10 | 1971-11-24 |
| Argus | Moscow | Homog (L) | Operational | 20 | 1981-11-02 |
| IKAR-S | Sarov | Crit graphite | Operational | 0.10 | 2008-12-01 |
| BIGR | Sarov | Fast, pulsed | Operational | 500 | 1977-03-31 |
| GIR-2 | Sarov | Fast, pulsed | Operational | 1.00 | 1993-04-12 |
| FKBN-2 | Snezhinsk | Crit fast | Operational | 0.10 | 2000-01-01 |
| FKBN-2M | Sarov | Crit fast | Operational | 0.00 | 2001-03-02 |
| IRT-2000 | Moscow | Tank | Decommissioned | 2,000 | 1957-11-23 |
| BR-1M | Sarov | Fast, pulsed | Operational | 5 | 1979-01-01 |
| IRT-MEPhI | Moscow | Pool, irt | Extended shutdown | 2,500 | 1967-05-26 |
| BR-K1 | Sarov | Fast, pulsed | Operational | 10 | 1995-11-30 |
| IVV-2M | Zarechniy | Pool | Operational | 15,000 | 1966-04-23 |
| MBIR | Dimitrovgrad | Fast, power | Under construction | 150,000 | |
| Stend T-2 | Obninsk | Space test | Decommissioned | 0.00 | 1970-01-01 |
| VRL-03 | Moscow | Pool | Decommissioned | 100 | 1961-01-01 |
| VRL-02 | Moscow | Pool | Decommissioned | 100 | 1959-01-01 |
| S111 | Moscow | Crit assembly | Decommissioned | 0.00 | |
| 1120 | Nizhny Novgorod | Crit assembly | Decommissioned | 0.00 | 1975-01-01 |
| MER | Saint Petersburg | Crit assembly | Permanent shutdown | 0.20 | 1970-01-01 |
| G-1 | Saint Petersburg | Crit assembly | Permanent shutdown | 0.20 | 1964-01-01 |
| FM SM-3 | Dimitrovgrad | Crit assembly | Operational | 0.02 | 1970-01-01 |
| FM MIR.M1 | Dimitrovgrad | Crit assembly | Operational | 0.01 | 1966-10-30 |
| Narciss-M2 | Moscow | Crit assembly | Operational | 0.01 | 1983-08-23 |
| SK Physical | Moscow | Crit assembly | Operational | 0.60 | 2000-04-18 |
| Efir-2M | Moscow | Crit assembly | Operational | 0.10 | 1973-01-01 |
| Delta | Moscow | Crit assembly | Operational | 0.10 | 1985-04-24 |
| P | Moscow | Crit assembly | Operational | 0.20 | 1987-07-17 |
| FM MR | Moscow | Crit assembly | Decommissioned | 0.10 | 1971-01-01 |
| Grog | Moscow | Crit assembly | Permanent shutdown | 0.10 | 1981-01-01 |
| B-1000 | Moscow | Crit assembly | Operational | 0.20 | 1986-09-03 |
| Kvant | Moscow | Crit assembly | Operational | 1.00 | 1990-01-01 |
| Astra | Moscow | Crit assembly | Operational | 0.10 | 1981-08-05 |
| SF-7 | Moscow | Crit assembly | Decommissioned | 0.10 | 1975-03-12 |
| SF-3 | Moscow | Crit assembly | Decommissioned | 0.10 | 1979-01-01 |
| SF-5 | Moscow | Crit assembly | Decommissioned | 0.10 | 1972-01-01 |
| SF-1 | Moscow | Crit assembly | Decommissioned | 0.10 | 1972-05-19 |
| Mayak | Moscow | Crit assembly | Decommissioned | 0.01 | 1967-01-01 |
| RBMK | Moscow | Crit assembly | Operational | 0.03 | 1982-01-06 |
| UG | Moscow | Crit assembly | Permanent shutdown | 0.10 | 1965-12-18 |
| MATR-2 | Obninsk | Crit assembly | Under decommissioning | 0.40 | 1963-08-02 |
| FS-1M | Obninsk | Crit assembly | Decommissioned | 0.20 | 1970-03-03 |
| MAKET | Moscow | Crit assembly | Operational | 0.10 | 1976-12-30 |
| Argus-2 | Moscow | Homog (L) | Decommissioned | 50 | |
| U-3 | Saint Petersburg | Pool | Operational | 50 | 1964-12-13 |
| Arbus (AST-1) | Dimitrovgrad | Tank | Decommissioned | 12,000 | 1963-01-01 |
| VK-50 | Dimitrovgrad | Bwr-prototype | Operational | 200,000 | 1964-12-15 |
| Gamma | Moscow | Tank | Under decommissioning | 150 | 1981-12-30 |
| FBR-L fast burst-laser | Chelyabinsk | Fast burst | Operational | 5 | 1981-03-31 |
| YAGUAR (NHUAR) | Chelyabinsk | Homog pul | Operational | 4 | 1988-12-31 |
| IGRIK, pulsed homog | Chelyabinsk | Homog | Operational | 30 | 1975-03-15 |
| BARS-5 (FNRS) | Snezhinsk | Fast burst | Operational | 10 | 1986-01-01 |
| RG-1M | Norilsk | Pool | Decommissioned | 100 | 1970-04-15 |
| BOR-60 | Dimitrovgrad | Fast breeder | Operational | 60,000 | 1968-12-30 |
| F-1 | Moscow | Graphite pile | Permanent shutdown | 24 | 1946-12-25 |
| RBT-6 | Dimitrovgrad | Pool | Operational | 6,000 | 1975-09-24 |
| RBT-10/2 | Dimitrovgrad | Pool | Operational | 7,000 | 1983-11-24 |
| IRT-T | Tomsk | Pool, irt | Operational | 6,000 | 1967-07-22 |
| Romashka | Moscow | Space test | Decommissioned | 40 | 1964-08-01 |
| MR | Moscow | Tank | Under decommissioning | 50,000 | 1963-12-01 |
| SBR-2 | Obninsk | Fast, Hg cooled | Decommissioned | 150 | 1957-03-01 |
| RPT | Moscow | Graphite | Decommissioned | 20,000 | 1952-04-01 |
| OR-M | Moscow | Tank wwr | Operational | 300 | 1988-05-20 |
| TVR | Moscow | Tank | Under decommissioning | 2,500 | 1949-01-01 |
| VVR-2 | Moscow | Tank | Decommissioned | 3,000 | 1954-01-01 |
| VIR-2M | Sarov | Homog pul | Operational | 25 | 1980-04-24 |
| VIR-2 | Sarov | Homog pul | Decommissioned | 25 | 1965-01-01 |
| BR-5 | Obninsk | Fast, Na cooled | Decommissioned | 5,000 | 1958-01-01 |
| BR-2 | Obninsk | Fast | Decommissioned | 100 | 1956-01-01 |
| MIR.M1 | Dimitrovgrad | Pool/channels | Operational | 100,000 | 1966-12-24 |
| IR-8 | Moscow | Pool, irt | Operational | 8,000 | 1981-08-12 |
| UVPSh | Moscow | Subcrit | Operational | 0.00 | 1964-03-18 |
| UG Subcritical | Moscow | Subcrit | Operational | 0.00 | 1955-04-20 |
| UV | Moscow | Subcrit | Operational | 0.00 | 1980-12-04 |
| RBT-10/1 | Dimitrovgrad | Pool | Decommissioned | 10,000 | 1983-12-01 |
| UG Rig | Elektrostal | Crit graphite | Decommissioned | 0.03 | 1967-04-20 |
| VVER | Moscow | Subcrit | Extended shutdown | 0.00 | 1974-04-06 |
| UV-1 | Moscow | Subcrit | Extended shutdown | 0.00 | 1983-10-25 |
| UV-2 | Moscow | Subcrit | Extended shutdown | 0.00 | 1972-11-04 |
| Aksamit | Moscow | Crit assembly | Operational | 0.00 | 2002-02-25 |
| R-1 | Saint Petersburg | Subcrit | Permanent shutdown | 0.00 | 1991-08-19 |
| SO-2M | Moscow | Subcrit | Permanent shutdown | 0.00 | 1975-01-01 |
| 7KVD | Podolsk | Subcrit | Permanent shutdown | 0.00 | 1979-12-07 |

## Saudi Arabia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| LPRR | Riyadh | Pool | | Under construction | 30 | | | | |

## Serbia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RB | Belgrade | Heavy water | | Temporary shutdown | 0.00 | 1958-04-29 | | Vinča Nuclear Institute, Vinča | At the beginning, the RB reactor was designed and constructed as an unreflected zero power heavy water - natural uranium critical assembly. First criticality was reached in April 1958. Later, the 2% enriched metal uranium fuel and 80% enriched UO$_2$ fuel were obtained and used in the reactor core. Modifications of the reactor control, safety and dosimetry systems (1960, 1976, 1988) converted the RB critical assembly to a flexible heavy water reflected experimental reactor with 1 W nominal power, operable up to 50 W. Several coupled fast-thermal systems were designed and constructed at RB reactor in the early 1990s, for research in fast reactors physics. |
| RA | Vinča | Heavy water | | Decommissioned | 6,500 | 1959-12-28 | 2002 | Vinča Nuclear Institute, Vinča | 6.5 MW heavy water moderated and cooled research reactor |

## Slovenia

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| TRIGA- MARK II LJUBLJANA | Ljubljana | TRIGA Mark II | | Operational | 250 | 1966-05-31 | | Jožef Stefan Institute | (web page link) |

## South Africa

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| SAFARI-1 | Pretoria | Tank in pool | | Operational | 20,000 | 1965-03-18 | | South African Nuclear Energy Corporation (NECSA) | Pelindaba Nuclear Research Center near Pretoria 25°48′03″S 27°56′54″E﻿ / ﻿25.80083°S 27.94833°E﻿ / -25.80083; 27.94833﻿ (Pelindaba Nuclear Research Center) |
| Pelinduna-0 | Pretoria | Crit fast | | Decommissioned | 0.00 | 1967-01-01 | | | Pelindaba Nuclear Research Center near Pretoria 25°48′03″S 27°56′54″E﻿ / ﻿25.80083°S 27.94833°E﻿ / -25.80083; 27.94833﻿ (Pelindaba Nuclear Research Center) |

## South Korea

Nuclear research reactors in South Korea :
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| KRR-1 | Seoul | TRIGA Mark II | Decommissioned | 250 | 1962-03-19 | KAERI | Research Reactor,100 kW, built 1962 (decommissioned) |
| KRR-2 | Seoul | TRIGA Mark III | Decommissioned | 2,000 | 1972-04-10 | KAERI | Research reactor, 2MW, built 1972 (decommissioned) |
| AGN-201K | Yongin | Homog (S) | Operational | 0.01 | 1982-12-04 | Kyung Hee University | Aerojet General Nucleonics Model 201 research reactor, 0.01 kW commissioned 1982 |
| HANARO | Daejeon | Pool | Operational | 30,000 | 1995-02-08 | KAERI | MAPLE class reactor |
| KJRR | Busan | Pool | Planned | 15,000 | | KAERI | |

## Spain

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| CORAL-I | Madrid | Crit assembly | Decommissioned | 0.05 | 1968-03-28 | | | |
| ARBI Reactor | Bilbao | Argonaut | Decommissioned | 10 | 1962-06-26 | | | |
| Argos Research Reactor | Barcelona | Argonaut | Decommissioned | 1.00 | 1961-06-01 | 1992 | Polytechnic University of Catalonia | Argos |
| JEN-1 Mod | Madrid | Pool | Decommissioned | 3,000 | 1958-10-09 | | | |

## Sweden

Nuclear research reactors in Sweden :
| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| R1 | Stockholm | Pool | Research | Decommissioned | 600 | 1954-07-13 | 1970 | KTH | |
| R-2 | Nyköping | Tank | Research, production of isotopes for industry | Under decommissioning | 50,000 | 1960-05-04 | 2005 | Studsvik | |
| R2-0 | Nyköping | Pool | Research, production of isotopes for industry | Under decommissioning | 1,000 | 1960-06-20 | Never completed | Studsvik | |
| Ågestaverket (R-3) | Farsta, Stockholm | Pool | District heating | Under decommissioning | 80,000 | 1963 | 1973 | Vattenfall AB, Barsebäck Kraft AB | |
| R-4 | Marviken, Norrköping | | Research, plutonium production | | | | | | Never completed, abandoned in 1970 |
| FR-0 | Nyköping | Crit fast | Research | Decommissioned | 0.01 | 1964-02-01 | 1971 | Studsvik | Zero-power fast reactor |
| KRITZ | Nyköping | Crit assembly | | Decommissioned | 0.10 | 1969-10-01 | | Studsvik | |

## Switzerland

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| AGN 211 P | Basel | Homog (S) | | Decommissioned | 2 | 1959-08-01 | | | |
| CROCUS | Lausanne | Crit assembly | | Operational | 0.10 | 1983-07-13 | | École polytechnique fédérale de Lausanne | Null-power light water reactor. In operation. |
| PROTEUS | Villigen | Crit assembly | | Under decommissioning | 1.00 | 1968-01-01 | 2012 | Paul Scherrer Institut | Null-power reconfigurable reactor (graphite moderator/reflector). |
| DIORIT | Zürich | Heavy water | | Under decommissioning | 30,000 | 1960-10-10 | 1977 | Paul Scherrer Institut | |
| AGN-201P | Geneva | Homog (S) | | Decommissioned | 0.00 | 1958-06-01 | 2020 | University of Basel | Research reactor, in operation since 1958 (demonstrated at the Expo 58 in Brussels), since 1959 at the University of Basel. Decommissioned in 2020. |
| SAPHIR | Würenlingen | Pool | | Decommissioned | 10,000 | 1957-04-30 | 1993 | Paul Scherrer Institut | |
| Lucens | Lucens, Vaud | Heavy-water moderated, carbon dioxide gas-cooled. | Pilot nuclear power plant | Decommissioned | 30,000 | 10 May 1968 | 3 March 1969 | Nationale Gesellschaft zur Förderung der industriellen Atomtechnik Energie Ouest Suisse | Prototype power reactor (GCHWR) 30 MWh/6 MWe. Shut down in 1969 after accident. Site decommissioned. |

## Syria

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| SRR-1 | Damascus | MNSR | | Operational | 30 | 1996-03-04 | | | |

## Taiwan

| Name | Location | Type | Status | Thermal power [kW] | Operation date |
| THAR | Hsinchu | Argonaut | Decommissioned | 10 | 1974-04-20 |
| THOR | Hsinchu | Triga conv | Operational | 2,000 | 1961-04-13 |
| THMER | Hsinchu | Mobile Edu. | Decommissioned | 0.00 | 1975-11-19 |
| TRR | Taoyuan | Heavy water | Decommissioned | 40,000 | 1973-01-03 |
| WBRL | Taoyuan | Homog (L) | Decommissioned | 100 | 1983-02-23 |
| ZPRL | Taoyuan City | Pool | Permanent shutdown | 30 | 1971-02-02 |

## Tajikistan

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| Argus-FTI | Dushanbe | Homog (L) | | Under construction | 50 | | | | |

## Thailand

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| TRR-1/M1 | Bangkok | TRIGA Mark III | | Operational | 1,300 | 1977-11-07 | | Thailand Institute of Nuclear Technology (TINT) | Thai Research Reactor 1/Modification 1, Installed 1962, modified 1975–77. |
| SUT MNSR | Nakorn Ratchasima | MNSR | | Planned | 45 | | | | Ongkharak Nuclear Research Center (under construction) |

## Turkey

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator | Notes |
| TR-1 | Istanbul | Pool | Decommissioned | 1,000 | 1962-01-01 | Turkish Atomic Energy Authority | |
| TR-2, Turkish Reactor 2 | Istanbul | Pool | Extended shutdown | 5,000 | 1981-12-10 | Turkish Atomic Energy Authority | |
| ITU-TRR | Istanbul | TRIGA Mark II | Operational | 250 | 1979-03-11 | Istanbul Technical University | Institute of Energy |

### Fuel pilot plants

* TRD Fuel Pilot Plant (Turkish Atomic Energy Authority)

## Ukraine

| Name | Location | Type | Status | Thermal power [kW] | Operation date | Owner and operator |
| KIPT Experimental Neutron Source | Kharkiv | Subcrit | Under construction | 0.19 | | |
| WWR-M Kyiv | Kyiv | Tank wwr | Operational | 10,000 | 1960-12-02 | Kyiv Institute for Nuclear Research |
| Multipurpose RR | Kyiv | Pool | Planned | 20,000 | | Kyiv Institute for Nuclear Research |
| SNI, IR-100 | Sevastopol | Pool, irt | Operational | 200 | 1967-04-18 | Sevastopol Institute of Nuclear Energy and Industry |
| SPh IR-100 | Sevastopol | Crit assembly | Operational | 0.00 | 1974-07-17 | Sevastopol Institute of Nuclear Energy and Industry |

## United Kingdom

* Culham - JET fusion reactor
* Dounreay
** The Shore Test Facility (STF) at VULCAN (Rolls-Royce Naval Marine)
** DSMP1 at VULCAN (Rolls-Royce Naval Marine) (shut down 1984)
** Prototype Fast Reactor (shut down 1994)
| Name | Location | Type | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| ZEUS | Didcot | Crit fast | Decommissioned | 0.10 | 1955-12-22 | | | |
| ZEPHYR | Didcot | Crit fast | Decommissioned | 0.00 | 1954-02-01 | | | |
| Dounreay Zero Energy ZETR | Thurso | Crit assembly | Decommissioned | 0.00 | 1957-08-13 | | | |
| ERIC | Aldermaston | Crit fast | Decommissioned | 0.00 | 1952-01-01 | | | |
| Waterfall | Aldermaston | Crit fast | Decommissioned | 0.00 | 1954-01-01 | | | |
| Atlas | Aldermaston | Crit assembly | Decommissioned | 0.00 | 1952-01-01 | | | |
| VIPER | Aldermaston | Fast burst | Permanent shutdown | 0.50 | 1967-05-26 | | Atomic Weapons Establishment | |
| BERKELEY Zero Energy | Berkeley | Graphite | Decommissioned | 1.00 | 1966-04-14 | | | |
| BEPO | Didcot | Graphite, air | Under decommissioning | 6,500 | 1962-01-01 | 1968 | | |
| LIDO | Didcot | Pool | Decommissioned | 300 | 1956-09-01 | 1974 | | |
| HAZEL | Didcot | Homog (L) | Decommissioned | 0.00 | 1957-01-01 | | | |
| DAPHNE | Didcot | Heavy water | Decommissioned | 0.10 | 1962-01-01 | | | |
| ZENITH II | Winfrith, Dorchester | Graphite | Decommissioned | 1.00 | 1972-03-01 | | | |
| ZENITH I | Winfrith, Dorchester | Graphite CO$_2$ | Decommissioned | 0.50 | 1959-12-01 | | | |
| JUNO | Winfrith, Dorchester | Crit assembly | Decommissioned | 0.10 | 1964-03-01 | | | |
| HERO | Seascale | Graphite AGR | Decommissioned | 3 | 1962-06-01 | | | |
| Windscale AGR (WAGR) | Seascale | Graphite AGR | Decommissioned | 120,000 | 1962-08-09 | 1982 | | |
| Dragon | Winfrith, Dorchester | He cooled | Under decommissioning | 20,000 | 1964-01-01 | | | |
| Dounreay MTR | Thurso | Heavy water | Decommissioned | 22,500 | 1958-05-01 | 1969 | | |
| MERLIN | Aldermaston | Pool | Decommissioned | 5,000 | 1959-07-01 | | | |
| HORACE | Aldermaston | Crit assembly | Decommissioned | 0.01 | 1958-05-01 | | | |
| DIMPLE | Winfrith, Dorchester | Pool | Decommissioned | 0.10 | 1962-01-01 | | | |
| ICI TRIGA Reactor | Billingham | TRIGA Mark I | Decommissioned | 250 | 1971-08-01 | 1988 | ICI Physics and Radioisotopes Dept of ICI R&D (later to become Tracerco) | |
| Universities Research Reactor | Risley, Warrington | Argonaut | Decommissioned | 300 | 1964-07-07 | 1991 | | Shut down 1991, decommissioned, land released 1996 |
| CONSORT reactor Imperial College | London | Pool | Decommissioned | 100 | 1965-09-04 | 2012 | Imperial College, Silwood Park campus | Began operation in 1965, shut down in 2012, fuel removed in 2014. Fully decommissioned by 2022. |
| UTR-300 | East Kilbride, Glasgow | Argonaut | Decommissioned | 300 | 1963-06-01 | 1995 | | Scottish Universities Research and Reactor Centre (100 kW Argonaut class reactor deactivated 1995, fully dismantled 2003) |
| VERA Nuclear Assembly | Aldermaston | Crit fast | Decommissioned | 0.10 | 1961-01-01 | | | |
| VULCAN | Thurso | Pwr | Permanent shutdown | 0.00 | 1961-01-01 | | | |
| Neptune | Raynesway, Derby | Pool | Operational | 0.30 | 1963-01-03 | | Rolls-Royce Marine Power Operations Ltd | |
| HECTOR | Winfrith, Dorchester | Zero power htd | Decommissioned | 0.10 | 1963-03-01 | | | |
| HERALD | Aldermaston | Pool | Decommissioned | 5,000 | 1960-10-10 | | | |
| NESTOR | Didcot | Argonaut | Decommissioned | 30 | 1961-01-01 | | | |
| ZEBRA | Winfrith, Dorchester | Crit fast | Decommissioned | 1.00 | 1962-12-01 | | | |
| JASON | Greenwich, London | Argonaut | Decommissioned | 10 | 1959-09-30 | 1999 | | |
| Dounreay Fast Reactor | Thurso | Fast breeder reactor | Under decommissioning | 65,000 | 1959-11-01 | 1977 | | |
| PLUTO | Harwell | Heavy water | Under decommissioning | 26,000 | 1957-10-25 | 1990 | Harwell AERE | |
| DIDO | Harwell | Heavy water | Under decommissioning | 26,000 | 1956-11-07 | 1990 | Harwell AERE | |
| GLEEP | Harwell | Graphite | Decommissioned | 50 | 1947-08-18 | 1990 | Harwell AERE | |
| Toad | Thurso | Crit assembly | Decommissioned | 0.01 | 1960-07-01 | | | |
| Panther | Thurso | Crit assembly | Decommissioned | 0.01 | 1961-01-01 | | | |
| Puma | Thurso | Crit assembly | Decommissioned | 0.00 | 1960-11-01 | | | |
| Phoenix | Thurso | Crit assembly | Decommissioned | 0.10 | 1960-07-01 | | | |
| Sirius | Thurso | Crit assembly | Decommissioned | 0.10 | 1961-05-01 | | | |
| Tessie | Thurso | Crit assembly | Decommissioned | 5 | 1959-11-01 | | | |
| QMC Subcritical Assembly | Stratford Marsh, London | Subcrit | Decommissioned | 0.00 | 1959-03-01 | | Queen Mary College | |
| QMC UTR-B | Stratford Marsh, London | Argonaut | Decommissioned | 100 | 1968-06-10 | 1982 | Queen Mary College | |
| HECTOR | NA | Graphite CO$_2$ | Decommissioned | 0.10 | 1963-03-10 | | | |
| PILE 1 | Sellafield | | | | | 1957 | | Sellafield was previously named Windscale until 1971. Shut down 1957 after Windscale fire. |
| PILE 2 | Sellafield | | | | | 1957 | | Sellafield was previously named Windscale until 1971. |

## United States

Plutonium production reactors :
| Name | Location | Reactor type | Purpose | Status | Capacity (MWth) | Closure | Operator and owner |
| B-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Preserved as a museum | | | Manhattan Project |
| F-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and cocooned | | | Manhattan Project |
| D-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and cocooned | | | Manhattan Project |
| H-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and cocooned | | | United States Atomic Energy Commission |
| DR-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and cocooned | | | United States Atomic Energy Commission |
| C-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and cocooned | | | United States Atomic Energy Commission |
| KE-Reactor (K-East) | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and being cocooned | | | United States Atomic Energy Commission |
| KW-Reactor (K-West) | Hanford Site | Graphite pile | Production of plutonium-239 for weapons | Shut down and being cocooned | | | United States Atomic Energy Commission |
| N-Reactor | Hanford Site | Graphite pile | Production of plutonium-239 for weapons and electricity for regional grid | Shut down and cocooned | | | United States Atomic Energy Commission |
| R-Reactor | Savannah River Site | Heavy water | Production of plutonium-239 and tritium for weapons | Surveillance and maintenance mode | 2260 | 1964 | United States Atomic Energy Commission |
| P-Reactor | Savannah River Site | Heavy water | Production of plutonium-239 and tritium for weapons | Surveillance and maintenance mode | 2680 | 1988 | United States Atomic Energy Commission |
| L-Reactor | Savannah River Site | Heavy water | Production of plutonium-239 and tritium for weapons | Surveillance and maintenance mode | 2700 | 1988 | United States Atomic Energy Commission |
| K-Reactor | Savannah River Site | Heavy water | Production of plutonium-239 and tritium for weapons | Surveillance and maintenance mode | 2710 | 1988 | United States Atomic Energy Commission |
| C-Reactor | Savannah River Site | Heavy water | Production of plutonium-239 and tritium for weapons | Surveillance and maintenance mode | 2915 | 1985 | United States Atomic Energy Commission |

### Army Nuclear Power Program

Army Nuclear Power Program reactors :
| Name | Location | Reactor type | Purpose | Status | Capacity (kW) | Operation date | Operator and owner |
| SM-1 | Fort Belvoir | PWR | Training and testing | Decommissioned | 2000 | 8 April 1957 to 16 March 1973 | United States Army |
| SM-1A | Fort Greely | | Electricity and heat supply | Decommissioned | 2000 | 13 March 1962 to 1972 | United States Army |
| PM-2A | Camp Century, Greenland | | Electricity and steam supply | Decommissioned | 2000 | 3 October 1960 | United States Army |
| PM-1 | Sundance Air Force Station | PWR | Electricity and steam supply | Decommissioned | 1250 | 25 February 1962 to 1968 | United States Air Force |
| PM-3A | McMurdo Station, Antarctica | | Electricity, seawater desalinization, and heat supply | Decommissioned | 1750 | 3 March 1962 to September 1972 | United States Navy |
| MH-1A | Panama Canal Zone | | Electricity and fresh water supply | Decommissioned | 10000 | 24 January 1967 | United States Army |
| SL-1 | Idaho National Laboratory | BWR | Stationary power supply demonstration | Decommissioned. Destroyed by explosion January 3, 1961. | 400 thermal, 200 electric | 11 August 1958 to 3 January 1961 | United States Army |
| ML-1 | Idaho National Laboratory | Gas turbine | Mobile power supply demonstration | Decommissioned | 140 | 30 March 1961 | United States Army |

### United States Naval reactors

Naval Nuclear Power Program reactors :
| Name | Location | Purpose | Status | Operator and owner |
| S8G | Knolls Atomic Power Laboratory | Training | Yes | United States Navy |
| MARF/S7G | Knolls Atomic Power Laboratory | Training | Yes | United States Navy |
| D1G | Knolls Atomic Power Laboratory | Prototype | Decommissioned | United States Navy |
| S3G | Knolls Atomic Power Laboratory | Prototype | Decommissioned | United States Navy |
| ex-USS Daniel Webster (SSBN-626) | Joint Base Charleston | S5W reactor moored training ship (MTS-626) | Yes | United States Navy |
| ex-USS Sam Rayburn (SSBN-635) | Joint Base Charleston | S5W reactor moored training ship (MTS-635) | Yes | United States Navy |
| ex-USS La Jolla (SSN-701) | Joint Base Charleston | S6G reactor moored training ship (MTS-701) | Yes | United States Navy |
| S1C | Windsor, Connecticut | Training | Decommissioned | United States Navy |

### Research reactors

United States Federal Government non-plutonium production research reactors :
| Name | Location | Reactor type | Purpose | Status | Capacity (kW) | Operation date | Closure | Operator and owner |
| SEFOR (Southwest Experimental Fast Oxide Reactor), Arkansas | Arkansas | | Research, development, and experiments | Decommissioned | | | | |
| SL-1 | INL | | Stationary power supply demonstration | Decommissioned; destroyed by explosion January 3, 1961 | | | | United States Army |
| AFSR | INL | | Research, development, and experiments | Decommissioned | | | | |
| ARMF-I | INL | | Research, development, and experiments | Decommissioned | | | | |
| ARMF-II | INL | | Research, development, and experiments | Decommissioned | | | | |
| Advanced Test Reactor (ATR) | INL | | Research, development, and experiments | Yes | | | | |
| Advanced Test Reactor Critical (ATRC) | INL | | Research, development, and experiments | Yes | | | | |
| A1W-A | INL | | Research, development, and experiments | Decommissioned | | | | |
| A1W-B | INL | | Research, development, and experiments | Decommissioned | | | | |
| BORAX-I | INL | | Research, development, and experiments | Decommissioned; intentionally exploded | | | | |
| BORAX-II | INL | | Research, development, and experiments | Decommissioned | | | | |
| BORAX-III | INL | | Research, development, and experiments | Decommissioned | | | | |
| BORAX-IV | INL | | Research, development, and experiments | Decommissioned | | | | |
| BORAX-V | INL | | Research, development, and experiments | Decommissioned | | | | |
| CET | INL | | Research, development, and experiments | Decommissioned | | | | |
| CFRMF | INL | | Research, development, and experiments | Decommissioned | | | | |
| CP-1 (moved and renamed CP-2) | University of Chicago | | Research, development, and experiments | Decommissioned | | | | |
| CP-3 | INL | | Research, development, and experiments | Decommissioned | | | | |
| CP-5 | INL | | Research, development, and experiments | Decommissioned | | | 1979 | |
| CRCE | INL | | Research, development, and experiments | Decommissioned | | | | |
| Experimental Breeder Reactor I (originally CP-4) | INL | | Research, development, and experiments | Museum | | | | |
| Experimental Breeder Reactor II | INL | | Research, development, and experiments | Decommissioned | | | | |
| Experimental Boiling Water Reactor | INL | | Research, development, and experiments | Decommissioned | | | | |
| Experimental Test Reactor | INL | | Research, development, and experiments | Decommissioned | | | | |
| EBOR | INL | | Research, development, and experiments | Never operated | | | | |
| ECOR | INL | | Research, development, and experiments | Never operated | | | | |
| ETRC | INL | | Research, development, and experiments | Decommissioned | | | | |
| FRAN | INL | | Research, development, and experiments | Decommissioned | | | | |
| Gas Cooled Reactor Experiment | INL | | Research, development, and experiments | Decommissioned | | | | |
| Heat Transfer Reactor Experiment 1 | INL | | Research, development, and experiments | Decommissioned | | | | |
| Heat Transfer Reactor Experiment 2 | INL | | Research, development, and experiments | Decommissioned | | | | |
| Heat Transfer Reactor Experiment 3 | INL | | Research, development, and experiments | Decommissioned | | | | |
| HOTCE | INL | | Research, development, and experiments | Decommissioned | | | | |
| Integral Fast Reactor (IFR) | INL | | Research, development, and experiments | Never operated | | | | |
| JANUS reactor | INL | | Research, development, and experiments | Decommissioned | | | 1992 | |
| JUGGERNAUT | INL | | Research, development, and experiments | Decommissioned | | | | |
| Liquid Metal Fast Breeder Reactor (LMFBR) | INL | | Research, development, and experiments | Decommissioned | | | | |
| LOFT | INL | | Research, development, and experiments | Decommissioned | | | | |
| ML-1 | INL | | Research, development, and experiments | Decommissioned | | | | United States Army |
| MTR | INL | | Research, development, and experiments | Decommissioned | | | | |
| NRAD | INL | | Research, development, and experiments | Yes | | | | |
| OMRE | INL | | Research, development, and experiments | Decommissioned | | | | |
| PBF | INL | | Research, development, and experiments | Decommissioned | | | | |
| RMF (nuclear reactor)RMF | INL | | Research, development, and experiments | Decommissioned | | | | |
| SCRCE | INL | | Research, development, and experiments | Decommissioned | | | | |
| SNAPTRAN-1 | INL | | Research, development, and experiments | Decommissioned | | | | |
| SNAPTRAN-2 | INL | | Research, development, and experiments | Decommissioned | | | | |
| SNAPTRAN-3 | INL | | Research, development, and experiments | Decommissioned | | | | |
| SPERT-I | INL | | Research, development, and experiments | Decommissioned | | | | |
| SPERT-II | INL | | Research, development, and experiments | Decommissioned | | | | |
| SPERT-III | INL | | Research, development, and experiments | Decommissioned | | | | |
| SPERT-IV | INL | | Research, development, and experiments | Decommissioned | | | | |
| SUSIE | INL | | Research, development, and experiments | Yes | | | | |
| S1W/STR | INL | | Research, development, and experiments | Decommissioned | | | | |
| S5G | INL | | Research, development, and experiments | Decommissioned | | | | |
| ZPR-7 | INL | | Research, development, and experiments | Decommissioned | | | | |
| THRITS | INL | | Research, development, and experiments | Decommissioned | | | | |
| Transient Reactor Test Facility (TREAT) | INL | | Research, development, and experiments | Yes | | | | |
| Zero Power Physics Reactor (ZPPR)(formerly Zero Power Plutonium Reactor) | INL | | Research, development, and experiments | Decommissioned | | | | |
| ZPR-III | INL | | Research, development, and experiments | Decommissioned | | | | |
| ZPR-6 | INL | | Research, development, and experiments | Decommissioned | | | 1982 | |
| ZPR-9 | INL | | Research, development, and experiments | Decommissioned | | | 1981 | |
| 603-A | INL | | Research, development, and experiments | Decommissioned | | | | |
| 710 | INL | | Research, development, and experiments | Decommissioned | | | | |
| High Flux Beam Reactor | BNL | | Research, development, and experiments | Decommissioned | | | 1999 | |
| Brookhaven Medical Research Reactor | BNL | | Research, development, and experiments | Decommissioned | | | 2000 | |
| Brookhaven Graphite Research Reactor | BNL | | Research, development, and experiments | Decommissioned | | | 1968 | |
| Fast Flux Test Facility | Hanford Site | | Research, development, and experiments | Core Drilled | | | | |
| UHTREX | LANL | | Research, development, and experiments | Decommissioned | | | | |
| Omega West | LANL | | Research, development, and experiments | Decommissioned | | | | |
| Clementine | LANL | | Research, development, and experiments | Decommissioned | | | | |
| BREN Tower | Nevada Test Site | | Research, development, and experiments | Decommissioned | | | | |
| Demonstration Using Flattop Fission (DUFF) | Nevada Test Site | | Research, development, and experiments | Decommissioned | | 2012 | 2012 | |
| X-10 Graphite Reactor | ORNL | | Research, development, and experiments | Decommissioned | | 1943 | 1963 | |
| Homogeneous Reactor Experiment (HRE) | ORNL | | Research, development, and experiments | Decommissioned | | 1952 | 1954 | |
| Homogeneous Reactor Test (HRT) | ORNL | | Research, development, and experiments | Decommissioned | | 1957 | 1961 | |
| Aircraft Reactor Experiment (ARE) | ORNL | | Research, development, and experiments | Decommissioned | | 1954 | 1955 | |
| Molten Salt Reactor Experiment (MSRE) | ORNL | | Research, development, and experiments | Decommissioned | | 1965 | 1969 | |
| Health Physics Research Reactor (HPRR) | ORNL | | Research, development, and experiments | Decommissioned | | 1963 | 1987 | |
| Low-Intensity Test Reactor (LITR) | ORNL | | Research, development, and experiments | Decommissioned | | 1950 | 1968 | |
| Bulk Shielding Reactor (BSR) | ORNL | | Research, development, and experiments | Decommissioned | | 1950 | 1987 | |
| Geneva Conference Reactor | ORNL | | Research, development, and experiments | Decommissioned | | 1955 | 1955 | |
| Tower Shielding Reactor-I (TSR-I) | ORNL | | Research, development, and experiments | Decommissioned | | 1954 | 1958 | |
| Tower Shielding Reactor-II (TSR-II) | ORNL | | Research, development, and experiments | Decommissioned | | 1958 | 1982 | |
| Oak Ridge Research Reactor (ORR) | ORNL | | Research, development, and experiments | Decommissioned | | 1958 | 1987 | |
| High Flux Isotope Reactor | ORNL | | Research, development, and experiments | Yes | | 1965 | | |
| Pool Critical Assembly | ORNL | | Research, development, and experiments | Decommissioned | | 1958 | 1987 | |
| Experimental Gas Cooled Reactor (EGCR) | ORNL | | Research, development, and experiments | Constructed but never operated; project cancelled in 1966 | | | | |
| HWCTR - Heavy Water Components Test Reactor | SRS | | Research, development, and experiments | Decommissioned | | | | |
| Sodium Reactor Experiment | Santa Susana Field Laboratory | | Research, development, and experiments | Decommissioned | | | 1964 | |
| SNAP-10A | Santa Susana Field Laboratory | | Research, development, and experiments | Decommissioned; in low Earth orbit | | | | |
| Annular Core Research Reactor | Sandia National Laboratories | | Research, development, and experiments | Yes | | | | |
| TRIGA Mark F | Bethesda, Maryland | Pool | Research, development, and experiments | Yes | 1000 | 1962 | | Armed Forces Radiobiology Research Institute |
| NIST reactor | Gaithersburg, Maryland | Tank type, heavy water moderated | Research, development, and experiments | Yes | 20000 | 1967 | | National Institute of Standards and Technology |
| TRIGA Mark I | Denver, Colorado | Pool | Research, development, and experiments | Yes | 1000 | 1969 | | U.S. Geological Survey |
| TRIGA Mark I | Omaha, Nebraska | Pool | Research, development, and experiments | Decommissioned; possession-only license | | 1959 | 2001 | U.S. Veterans Administration |
| NASA reactors (2 reactors at site) | Sandusky, Ohio | | Research, development, and experiments | Decommissioned; under decommission orders or license amendments | | | | National Aeronautics and Space Administration |
| NS Savannah | James River Reserve Fleet, Virginia | | Marine propulsion demonstration and goodwill visits | Decommissioned; possession-only license | | | | Atomic Energy Commission, Maritime Administration (MARAD), and Department of Commerce |

#### Civilian (private and university) research and test reactors licensed to operate

| Operator | Location | Reactor | Power (MW) | Years operational |
| Aerotest Operations Inc. | San Ramon, California | TRIGA Mark I | 0.25 | 1965 - |
| Brigham Young University | Provo, Utah | Atomics International L77 | 0.00001 | 1967-1992 |
| Colorado State University | Fort Collins, CO | AGN-201 #109 | 0.0000001 | 1957 - 1976 |
| Dow Chemical Company | Midland, Michigan | TRIGA Mark I | 0.3 | 1967 - |
| General Electric Company | Sunol, California | Nuclear Test | 0.1 | 1957 - |
| Idaho State University | Pocatello, Idaho | AGN-201 #103 | 0.000005 | 1967 - |
| Iowa State University | Ames, Iowa | Experimental, instructional | 0.003 | 1959-1998 |
| Kansas State University | Manhattan, Kansas | TRIGA Mark II | 1.25 | 1962 - |
| Kodak | Rochester, New York | Californium Neutron Flux Multiplier | 5.8 | 1975 - 2006 |
| Massachusetts Institute of Technology | Cambridge, Massachusetts | Tank Type HWR Reflected (MITR-II) | 6 | 1958 - |
| Missouri University of Science and Technology | Rolla, Missouri | Pool (MSTR) | 0.2 | 1961 - |
| North Carolina State University | Raleigh, North Carolina | Pulstar | 1 | (earlier reactors dating to 1953) 1973 - |
| Ohio State University | Columbus, Ohio | Pool (modified Lockheed) | 0.5 | 1961 - |
| Oregon State University | Corvallis, Oregon | TRIGA Mark II (OSTR) | 1.1 | 1967 - |
| Penn State University | University Park, Pennsylvania | TRIGA BNR reactor | 1.1 | 1955 - |
| Purdue University | West Lafayette, Indiana | Lockheed (PUR-1) | 0.001 | 1962 - |
| Reed College | Portland, Oregon | TRIGA Mark I (RRR) | 0.25 | 1968 - |
| Rensselaer Polytechnic Institute | Schenectady, New York | Reactor critical facility | 0.000015 | 1965- |
| Rhode Island Atomic Energy Commission/ University of Rhode Island | Narragansett, Rhode Island | GE pool | 2 | 1964 - |
| Texas A&M University | College Station, TX | AGN-201M #106 - TRIGA Mark I (two reactors) | 1.000005 (2 reactors) | 1957 - , 1962 - |
| University of Arizona | Tucson, AZ | TRIGA Mark I | 0.11 | 1958–2010 |
| University of California-Davis | Sacramento, California | TRIGA Mark II, McClellan Nuclear Radiation Center | 2.3 | 1998 - |
| University of California, Irvine | Irvine, California | TRIGA Mark I | 0.25 | 1969 - |
| University of Florida | Gainesville, Florida | Argonaut (UFTR) | 0.1 | 1959 - |
| University of Maryland, College Park | College Park, Maryland | TRIGA Mark I | 0.25 | 1960 - |
| University of Massachusetts Lowell | Lowell, Massachusetts | Pool (UMLRR) | 1 | 1975 - |
| University of Missouri | Columbia, Missouri | General Electric tank type MURR | 10 (expanding to 30 with NextGen MURR) | 1966 - |
| University of New Mexico | Albuquerque, New Mexico | AGN-201M #112 | 0.000005 | 1966 - |
| University of Texas at Austin | Austin, Texas | TRIGA Mark II | 1.1 | 1992 - |
| University of Utah | Salt Lake City, Utah | TRIGA Mark I | 0.1 | 1975 - |
| University of Wisconsin–Madison | Madison, Wisconsin | TRIGA Mark I | 1 | 1961 - |
| Washington State University | Pullman, Washington | TRIGA conversion (WSUR) | 1 | 1961 - |

#### Civilian (private and university) research and test reactors formerly licensed to operate

Research and test reactors under decommission orders or license amendments are authorized to decontaminate and dismantle their facility to prepare for final survey and license termination. Research and test reactors with possession-only licenses are not authorized to operate the reactor, only to possess the nuclear material on-hand. They are permanently shut down.
| Operator | Location | Reactor | Power | Status |
| General Atomics (2 reactors at site) | San Diego, California | | | Under decommission order(s) or license amendment(s) |
| Georgia Institute of Technology | Atlanta, GA | Georgia Tech Research Reactor: heavy water moderated and cooled | 5 MW | Shut down and defueled due to safety concerns related to nearby 1996 Summer Olympics events. Decommissioning announcement July 1, 1997, reactor building remnants removed as of 2015. |
| University of Illinois at Urbana–Champaign | Urbana, Illinois | | | Under decommission order(s) or license amendment(s) |
| University of Michigan | Ann Arbor, Michigan | | | Under decommission order(s) or license amendment(s) |
| General Electric Company (3 reactors at site; two research and test reactors and one power reactor) | Sunol, California | | | Possession-only license(s) |
| University at Buffalo | Buffalo, New York | | | Retired in 1994. Possession-only license(s). |
| Worcester Polytechnic Institute | Worcester, Massachusetts | | | Possession-only license(s) |
| Westinghouse | Waltz Mill Site; Madison, PA | TR-2; also known as the Westinghouse Test Reactor or Westinghouse Testing Reactor (WTR) | | Decommissioned |

## Uruguay

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RU-1 | Montevideo | Pool | | Decommissioned | 10 | 1978-04-20 | | | URR reactor - A small pool-type research reactor placed in Centro de Investigaciones Nucleares (CIN). In operation since the early 1970s up until 1997 when it was dismantled and returned to United States due to a 1997 law against use of nuclear energy in Uruguay. |

## Uzbekistan

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| IIN-3M | Tashkent | Homog pul | | Decommissioned | 20 | 1975-12-01 | | | |
| WWR-SM Tashkent | Tashkent | Tank wwr | | Operational | 10,000 | 1959-09-10 | | | |

## Venezuela

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| RV-1 | San Antonio de los Altos | Pool | | Permanent shutdown | 3,000 | 1960-07-12 | 1994 | Venezuelan Institute for Scientific Research (IVIC) | |

## Vietnam

| Name | Location | Type | Purpose | Status | Thermal power [kW] | Operation date | Closure date | Owner and operator | Notes |
| Dalat Research Reactor | Da Lat | Pool TRIGA Mark II | | Operational | 500 | 1963-02-26 | | | (supplied by USA 1963, shut down 1975, reactivated by USSR 1984) |
| Multipurpose Research Reactor | Da Lat | Pool, irt | | Planned | 15,000 | | | | |