Several instances of evacuations (including both emergency evacuations and forced migrations) occurred during and after World War II.
World War II evacuation and expulsion, an overview of the major forced migrations
Forced migration of Poles, Ukrainians, Belorussians, and Russians to Germany as forced labour
Forced migration of Jews to Nazi concentration camps in German occupied lands
Expulsion of Germans after World War II from areas occupied by the Soviet Army
Evacuation of East Prussia
Japanese American internment
NKVD prisoner massacres
Evacuations of civilians in Britain during World War II, the emergency evacuation of children from British urban areas during the Battle of Britain
Evacuation of population in the Western USSR in the wake of Operation Barbarossa
Evacuation of Finnish Karelia
Finnish war children
Evacuations of civilians in Japan during World War II
Operation Dynamo, British evacuation of Dunkirk, France, 1940
Operation Ariel, British evacuation of Western France, 1940
Operation Cycle, British evacuation of Le Havre, France, 1940
Operation Alphabet, British evacuation of Norway, 1940
Evacuation for Odessa during the Siege of Odessa
Evacuation from Crimea during the Crimea Campaign
Evacuations during the Siege of Leningrad
Operation Hannibal, German evacuation of East Prussia in advance of the Soviet Army, 1945
Evacuation of Tallinn
Allied invasion of Sicily, Axis evacuation order over the Strait of Messina to Italy, 1943
Evacuation of industries from western USSR to the Urals
Evacuation of industries from western USSR to Central Asia
Evacuation of industries from western USSR to Kazakhstan
Evacuation of industries from western USSR to the Caucasus
List of World War II evacuations Wikipedia (Text) CC BY-SA