This list of mass evacuations includes emergency evacuations of a large number of people in a short period of time. An emergency evacuation is the movement of persons from a dangerous place due to the threat or occurrence of a disastrous event whether from natural or man made causes, or as the result of war.
- 480 BC – The Greek officer of the state and navy commander Themistocles ordered the evacuation of Athens as a strategic countermeasure to the approaching Persian army, leading to 100,000 inhabitants being displaced in the late summer.
- 60–61 – Boudica's uprising results in the mass evacuation of numerous Roman settlements in Britain.
- 79 – Eruption of Mount Vesuvius causes evacuation of Pompeii and surrounding areas.
- 410 – Sack of Rome by Visigoths under Alaric I. Many Romans were either taken captive and sold into slavery or later fled the devastated city.
- 1237–1293 – Mongol invasion of Europe: Many thousands in eastern Europe are displaced or flee before each of several Mongol expeditions.
- 1351 – Peak of the Black Death, which led to mass evacuations in numerous cities, ports, and villages in Asia, Europe, and Egypt.
- 1836 – The Fall of the Alamo results in a mass evacuation of American, Mexican, Tejano, and Texian persons in what is known as the Runaway Scrape.
- April 20, 1906 – The resultant fire of the 1906 San Francisco earthquake leads to evacuation by sea of 20,000 refugees.
- Between March 1937 and October 1938, nearly 3,000 children were evacuated from Spain to the Soviet Union. Most of the children were from the Basque Country, Asturias, and Cantabria. On June 12, 1937, over 1,500 children and 75 tutors (teachers, doctors, and nurses) left the Port of Santurtzi in the Basque province of Bizkaia on board the ship "Habana." Similarly, nearly 4,000 children were evacuated to the United Kingdom, also on the "Habana", with HMS Hood as an escort. They became, and are still known as, "los niños de la guerra" ("the war children") or the "Gernika Generation" (as regards Basques).
- September 1939 – The evacuations of civilians in Britain during World War II; at the outset of World War II, London and major British cities were evacuated, with 1.5 million displaced in the first three days of the official evacuation. The final number of evacuees reached 3.75 million.
- 1939–1940 and June 1944 – The entire population of Finnish Karelia, 522,000 people, was evacuated during the Winter War. Some 260,000 of these returned home during the Continuation War but were evacuated again in June 1944.
- May–June 1940 – Operation Dynamo was implemented, with around 439,000 British and French troops evacuated from Dunkirk, France.
- 20–23 June 1940 – 24,600 people, a third of the population, are evacuated from the Channel Islands to England and Scotland ahead of the German invasion.
- October 1940 – 1945 – Evacuations of children in Germany during World War II
- October 1941 – A mass evacuation of Moscow was ordered in the face of the threat of the war estimated 1.5 million to 3 million German Wehrmacht. Two million inhabitants were displaced within two weeks.
- 1942 – 1945 – Evacuation and deportation of Ingrian Finns from Ingria during and after World War II. About the entire population of Ingrian Finns (estimating 70,000 people) was evacuated from Leningrad oblast, Russia to Estonia and Finland. Those who returned after the war faced deportations to other parts of Russia.
- Autumn 1944-Spring 1945 – Evacuation of East Prussia (1.8 million people) and Pomerania (various estimates range between 3 and 7 million; see Flight and expulsion of Germans from Poland during and after World War II)
- June 1944 – August 1945 – Evacuations of civilians in Japan during World War II
- 1945–1951 – Istrian exodus From the end of World War II through 1953, according to various data, between 250,000 and 350,000 people emigrated from these regions
- May 1950 – One hundred thousand people were evacuated from Winnipeg, Manitoba, Canada during the devastating Red River flood of 1950.
- Between December 10 and 24, 1950, over 100,000 UN troops who were cut off by the Chinese intervention forces in Northern Korea, along with an even larger number of civilian refugees, were evacuated from the North Korean port of Hungnam during the Korean War.
- July–August 1971 – 18 million people migrated from Bangladesh (then known as East Pakistan) to India to escape the military forces of Pakistan (then known as West Pakistan). This was the largest and bloodiest exodus in human history, with 4 million dead.
- 26–31 December 1974 – As a result of Cyclone Tracy destroying over 85 percent of the city, more than 60,000 people from Darwin, Australia are evacuated from the area, leaving just 10,000 people (mainly adult males) to begin the massive cleanup.
- July 1974 – The complete, spontaneous evacuation in a few hours of Varosha before the advancing Turkish army; the population feared a massacre.
- 1975 – Operation Frequent Wind: thousands of South Vietnamese and the last remaining Americans evacuate Saigon, capital of South Vietnam, before the invading Vietcong and North Vietnamese Army overrun the city.
- July to October 1975 – After the end of the Portuguese colonial war, one million Portuguese civilians were flown from former Portuguese colonies in Africa, mainly Angola and Mozambique, back to Portugal. Thousands of flights were organized by the Portuguese government, using hundreds of commercial airplanes.
- 1975–1979 – Cambodia: After the Khmer Rouge take over the capital of Phnom Penh, all civilians are forced to evacuate the cities for the countryside, in order to create a new Communist society; 2–3 million displaced.
- November 1979 – As a result of the 1979 Mississauga train derailment, the city of Mississauga, Ontario, Canada was evacuated following a chlorine leak after a freight train derailed. 218,000 were displaced.
- April 1986 – The Chernobyl disaster involved an evacuation of an estimated 335,000 people following a nuclear meltdown at the Chernobyl nuclear power plant in Ukraine (then part of the Soviet Union).
- 13 August to 11 October 1990 – During the 1990 airlift of Indians from Kuwait Air India entered the Guinness Book of World Records for the most people evacuated by a civil airliner. Over 170,000 people were evacuated from Amman to Mumbai– a distance of 4,117 km- via 488 flights operated by Indian Airlines. The operation was carried out during the Persian Gulf War to evacuate Indian expatriates from Kuwait and Iraq.
- 24–25 May 1991 – Operation Solomon, covert Israeli military operation to take 14,325 Ethiopian Jews to Israel.
- June 1991 – Operation Fiery Vigil was the evacuation of roughly 20,000 non-essential military and United States Department of Defense civilian personnel and their dependents from Clark Air Base and U.S. Naval Base Subic Bay back to CONUS during the eruption of Mount Pinatubo in the Philippines.
- February 1995 – At least 200,000 people are evacuated in the Netherlands due to flooding.
- April 5, 1995 – Nearly 10.000 inhabitants of Pergamino, Buenos Aires, Argentina were evacuated for several days because of flooding 
- April 1997 – Nearly 50,000 residents of Grand Forks, North Dakota were evacuated due to flooding from the Red River of the North, which overtopped levees.
- July–August 1998 – Nearly 14 million people were evacuated because of massive flooding and landslides in north and central China, and 5.6 million houses were destroyed. An additional 300,000 people were evacuated on August 7 in anticipation of a possible breach of dikes along the Yangtze River.
- 1999 – The Kosovo War led to 800,000 refugees, not all of them urban residents, leaving Kosovo and being accommodated for up to three months in other parts of Europe.
- September 1999 – The size of Hurricane Floyd, its intensity, and its track prompted public officials to launch the largest evacuation in U.S. history, with an estimated 3 million people fleeing the storm.
- April 2001 – 77,000 inhabitants (around 2/3 of the population) of Vicenza, Italy) were evacuated for several hours so that an unexploded bomb, originally dropped in World War II, could be safely disarmed.
- September 11, 2001 – Evacuations from high-rise buildings across the United States. This included 3200+ survivors of the World Trade Center disaster and inhabitants of downtown Manhattan, New York City. Numerous other evacuations of high-rises in Chicago, Illinois included the Sears Tower and the Thompson Building. The evacuation of New York included the largest sea evacuation in recorded history, with over 500,000 being evacuated in 9 hours by hundreds of boats.
- January 2002 – 300,000 residents of the city of Goma, Democratic Republic of the Congo were evacuated in three days due to the eruption of the Mount Nyiragongo.
- August 2002 – The 2002 European floods led to the evacuation of 50,000 residents of Prague, Czech Republic, on 13 August, with a total of 200,000 Czechs during the second week of August. Elsewhere in Europe, more than 120,000 people were evacuated in the German city of Dresden, 36,000 in the German state of Saxony-Anhalt, and 1,500 in Hungary.
- September 2004 – Evacuation orders were issued for over 2.8 million residents in advance of Hurricane Frances, potentially the largest in Florida's history. FEMA later granted assistance to 229,500 applicants largely associated with relocation expenses.
- July 2005 – 20,000 people were evacuated from the city of Birmingham in the United Kingdom after a security alert due to a bomb scare.
- August 2005 – Hurricane Katrina led to a mass evacuation of the city of New Orleans, Louisiana, with approximately 80% of the city's population of 484,000 evacuating before the storm struck.
- September 22, 2005 – At least 2.5 million evacuated coastal Texas and Louisiana due to the approach of Hurricane Rita. This is the second largest evacuation in U.S. history, and the third-largest peacetime evacuation in modern times.
- October 2007 – More than 1.4 million people were evacuated in the Chinese provinces of Zhejiang and Fujian in anticipation of Typhoon Krosa.
- October 2007 – California wildfires forced more than 900,000 people in Southern California to evacuate, making it the largest evacuation in California's history and the largest evacuation for fire in United States history.
- May 2008 – 2008 Sichuan earthquake: Approximately 200,000 people are evacuated in Beichuan County, China because of flooding fears after a landslide created dam became unstable.
- August 2008 – At least 1.9 million people were evacuated from coastal Louisiana, including New Orleans, for Hurricane Gustav. In western Cuba, at least 300,000 people were evacuated.
- March 2011 – Following the Fukushima Daiichi nuclear disaster, between 170,000 and 200,000 people are evacuated within a 50-mile radius of the Fukushima I Nuclear Power Plant in fear of large casualties due to radiation poisoning.
- August 2011 – A mass evacuation stretching from North Carolina to New York was ordered because of Hurricane Irene and its size.
- June 2013 – Nearly 1,000,000 people evacuated in 12 days from Uttarakhand, India due to a flash flood and landslide. This operation was completed by the Indian Air Force, ITBP, NDRF, and local authorities. Helicopters were widely used because road networks were severely damaged.
- October 2013 – Nearly 975,000 people (world Bank report says close to 1,000,000 people) were evacuated in 36 hours from the coastal areas of Odisha (more than 850,000) and Andhra Pradesh (nearly 90,000) in the face of Cyclone Phailin. This operation was completed by the Indian Air Force, ITBP, ODRF, and local authorities.
- December 2014 – Nearly 1,000,000 people were evacuated in the eastern Philippines before typhoon Hagupit.
- April 2015 – Operation Maitri was carried out by India to evacuate stranded Indian citizens and foreigners from Nepal and humanitarian relief during the Nepal earthquake of magnitude 8.8.
- April 2015 – Operation Raahat (India) was carried out by India to evacuate stranded Indian citizens from Yemen. A total of 4640 Indian citizens and 960 foreign nationals were rescued.
- May 2016 – Approximately 88,000 people were evacuated from Fort McMurray (Canada) due to a wildfire that grew out of control quickly. This was the largest evacuation in the Province of Alberta's history. Evacuees went north to Oil Sands camps, and communities to the south.
- October 2016 – More than 2.5 million people were told to evacuate in Florida, Georgia and South Carolina due to the approach of Hurricane Matthew, becoming the tenth most destructive in U.S. history.
- February 2017 – Evacuation of 188,000 civilians from the city of Oroville, California and other towns near the Oroville Dam due to impending failure of auxiliary spillway systems.
- July to September 2017 - Evacuation of Cariboo Regional District, British Columbia, Canada, resulted in 35,616 people under evacuation order or alert over 77 days due to a record-setting wildfire season, with 996,141 hectares burnt in 232 fires, and 60 homes and 167 other structures destroyed over 48,099 km2. No deaths were recorded.
- September 2017 ─ One week after Hurricane Harvey rampaged coastal Texas and Louisiana, 7 million people (in Florida, Georgia, and South Carolina) were told to evacuate due to Hurricane Irma. Low estimates of the actual number of evacuees is 700,000 people.
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