# SSR

SSR may refer to:

## Businesses, entertainment and products

* Solid State Records, a Christian record label
* Chevrolet SSR, a Chevrolet small truck
* Disney's Saratoga Springs Resort & Spa
* Small Screen Rendering, a technology part of Opera Mini
* Sonic and the Secret Rings, a 2007 platform video game
* Stephen's Sausage Roll, a 2016 puzzle video game
* Sirius Satellite Radio, a satellite radio service operating in North America
* Strategic Scientific Reserve, a fictional organization in Marvel Comics and precursor to the fictional organization S.H.I.E.L.D.
* SSR Wheels, a Japanese wheel manufacturer

## Geographical locations

* Soviet Socialist Republic, see Republics of the Soviet Union
* Slovak Soviet Republic (1919), a very short-lived communist state in south and eastern Slovakia
* Slovak Socialist Republic, the official name of Slovakia from 1969 to 1990
* Second Spanish Republic

## Railways

* Sabah State Railway, a railway in Malaysia
* Southern Shorthaul Railroad, an Australian provider of motive power hauling trains in New South Wales and Victoria, and freight train operator
* Southern Suburbs Railway, a New MetroRail project in Perth, Western Australia
* Springfield Street Railway, a former interurban street railway in Springfield, Massachusetts
* Strategic steam reserve, a collection of steam locomotives retained for use in a national emergency
* Sub-surface Railways, cut-and-cover railway lines forming part of the London Underground; also called Sub-surface Lines

## Science and technology

* Scalable Sample Rate, used in MPEG-4 Part 3 and MPEG-2 Part 7
* Scalable Source Routing, a routing algorithm for unstructured networks
* Screen Space Reflections used in the computer graphics to compute approximate mirror reflections
* Secondary surveillance radar, a radar system used in air traffic control
* Simple Sequence Repeat, repeating sequences of 2-6 base pairs of DNA
* Site-specific recombination, a type of genetic recombination in which DNA strand exchange takes place between segments possessing only a limited degree of sequence homology
* Slope stability radar, the application for the monitoring of slope stability at open-cut mines
* Solid-state relay, an electronic switching device in which a small control signal controls a larger load current or voltage
* Sources, sinks and reservoirs, for greenhouse gases
* Stable salt reactor, a proposed low-cost nuclear reactor design
* Sum of squared residuals
* Sum of squares due to regression
* Server-side rendering, using a web server to deliver a customized HTML file for a user (client)
* State-space representation, a particular type of a mathematical model of a physical system, used in control engineering and in satellite navigation

## People

* S. S. Rajamouli (born 1973), Indian film director
* S. S. Rajendran (1928–2014), Indian actor
* Sushant Singh Rajput (1986–2020), Indian actor
* Singeetam Srinivasa Rao (born 1931), Indian film director

## Other uses

* Swiss Broadcasting Corporation (SRG SSR)
* Sainik School, Rewa, a senior secondary school in India
* Security sector reform, a process to amend a security sector towards good governance
* The South Saskatchewan Regiment, a Canadian infantry regiment
* Special Support and Reconnaissance Company, a Danish military unit
* The Structure of Scientific Revolutions, a 1962 book by Thomas Kuhn
* The obsolete United States Navy hull classification symbol for a diesel-electric radar picket submarine
* Sustained silent reading, a form of school-based recreational reading
* Self Supporting Run-flat tires, a type of run-flat tire
* Svenska Scoutrådet, the national Scouting and Guiding federation of Sweden
* In air travel passenger name records, a Special Service Request
* Same-sex relationship
* Short-sale restriction, a modified uptick rule instituted by the U.S. Securities and Exchange Commission (SEC) in 2010
* Somali State Resistance, a rebel group in Ethiopia