# List of disasters in Portugal by death toll

The following list of disasters in Portugal by death toll is a list of major disasters (excluding acts of war, terrorism or crime) which occurred in Portugal in a definable incident or accident, and which resulted in at least ten casualties.
| Event | Type | Date | Location | Deaths |
| 1755 Lisbon earthquake | Earthquake | 1 November 1755 | Continental Portugal | 12000+ (est.) |
| Ponte das Barcas collapse | Structural failure | 9 March 1809 | Porto / Vila Nova de Gaia | 4000 (est.) |
| 1522 Vila Franca earthquake | Earthquake | 22 October 1522 | Azores | 3000–5000 (est.) |
| 1531 Lisbon earthquake | Earthquake | 26 January 1531 | Continental Portugal | 1000–30000 (est.) |
| 1757 Azores Islands earthquake | Earthquake | 9 July 1757 | Azores | 1000–1500 (est.) |
| 1803 Madeira floods and mudslides | Floods | 9 October 1803 | Madeira | 600–1000 (est.) |
| 1967 Portugal floods | Floods | 25–26 November 1967 | Lisbon District | 462+ |
| Independent Air Flight 1851 crash | Aviation accident | 8 February 1989 | Santa Maria, Azores | 144 |
| TAP Flight 425 crash | Aviation accident | 19 November 1977 | Madeira | 131 |
| Sinking of the San Pedro de Alcantara | Maritime accident | 2 February 1786 | Near the coast of Peniche | 128 |
| 1941 Iberian cyclone | Storm | 14–16 February 1941 | Continental Portugal | 100+ |
| Custóias rail accident | Railway accident | 26 July 1964 | Matosinhos | 90+ |
| Sinking of the Nuestra Señora del Rosario | Maritime accident | 7 December 1589 | Coast of Setúbal | 80 (est.) |
| 1980 Azores Islands earthquake | Earthquake | 1 January 1980 | Azores | 73 |
| Venezuelan Air Force C-130 Hercules crash | Aviation accident | 3 September 1976 | Terceira, Azores | 68 |
| June 2017 wildfires | Wildfires | 17-24 June 2017 | Castanheira de Pera and Pedrógão Grande | 66 |
| Viasa Flight 897 crash | Aviation accident | 30 May 1961 | Near the coast of Setúbal | 61 |
| 1909 Benavente earthquake | Earthquake | 23 April 1909 | Continental Portugal | 60 |
| Hintze Ribeiro Bridge collapse | Structural failure | 4 March 2001 | Penafiel / Castelo de Paiva | 59 |
| Martinair Flight 495 crash | Aviation accident | 21 December 1992 | Faro | 56 |
| 2010 Madeira floods and mudslides | Floods | 20 February 2010 | Madeira | 51 |
| Cais do Sodré station roof collapse | Structural failure | 28 May 1963 | Lisbon | 49 |
| Moimenta-Alcafache train crash | Railway accident | 11 September 1985 | Mangualde | 49+ |
| Air France Flight 009 crash | Aviation accident | 28 October 1949 | São Miguel, Azores | 48 |
| October 2017 wildfires | Wildfires | 13-18 October 2017 | Continental Portugal | 45 |
| SA de Transport Aérien Flight 730 crash | Aviation accident | 18 December 1977 | Madeira | 36 |
| SATA Air Açores Flight 530M crash | Aviation accident | 11 December 1999 | São Jorge, Azores | 35 |
| Odemira rail accident | Railway accident | 13 September 1954 | Odemira | 34 |
| 1997 São Miguel floods and mudslides | Floods | 31 October 1997 | São Miguel, Azores | 29 |
| 2019 Madeira bus crash | Road accident | 17 April 2019 | Madeira | 29 |
| Viana do Castelo train collision | Road/railway accident | 1 May 1938 | Viana do Castelo | 28 |
| 1966 Sintra wildfires | Wildfires | 6-12 September 1966 | Sintra | 25 |
| Algueirão train collision | Railway accident | 20 December 1965 | Sintra | 20 |
| Vila Franca de Xira derailment | Railway accident | 16 August 1947 | Vila Franca de Xira | 17 |
| Recarei-Sobreira bus-train collision | Road/railway accident | 26 April 1984 | Paredes | 17 |
| Póvoa de Santa Iria train collision | Railway accident | 5 May 1986 | Vila Franca de Xira | 17 |
| Fratel bus crash | Road accident | 6 November 2007 | Vila Velha de Ródão | 17 |
| 1986 Águeda wildfires | Wildfires | 14 June 1986 | Águeda | 16 |
| 1985 Armamar wildfires | Wildfires | 8 September 1985 | Armamar | 14 |
| Vimieiro bus crash | Road accident | 25 March 2001 | Santa Comba Dão | 14 |
| 1816 North Atlantic earthquake | Earthquake | 2 February 1816 | Continental Portugal | 13 (est.) |
| Tunes bus crash | Road accident | 8 April 1989 | Silves | 13 |
| Monte tree collapse | Tree collapse | 15 August 2017 | Funchal, Madeira | 13 |
| 1997 South Portugal floods | Floods | 5 November 1997 | Beja District | 11 |
| Carvalhal bus crash | Road accident | 27 January 2013 | Sertã | 11 |
| Vila Nova da Rainha community centre fire | Fire | 13 January 2018 | Tondela | 11 |
| Gibalta rail accident | Railway accident | 31 March 1952 | Oeiras | 10 |
| 1983 Lisbon floods | Floods | 18 November 1983 | Lisbon District | 10 |
| 1998 Azores Islands earthquake | Earthquake | 9 July 1998 | Azores | 10 |