Mass migration

Immigration
General
Immigration by country List of immigrant populations Immigration country Immigration policy Illegal immigration Forced displacement Internal migration
History and law
Alien Asylum shopping Border security Citizenship Crime Deportation Detention Emigration Externalization Immigration law Immigrant investor programs Immigration tariff Indefinite leave to remain Migration diplomacy Net migration rate list Non-refoulement Permanent residency Population transfer Pushback Repatriation Extradition Residence permit Return migration Right of asylum Right of return Refugee Safe third country Smuggling Surveillance Voluntary return
Social processes
Acculturation (Acculturation gap) Birth tourism Anchor baby Satellite babies Economic effects Expatriate Human capital flight Human migration Immigrant assimilation Immigration consultant Integration Migration background Persecution Refugee crisis Social exclusion Student migration Unreported employment Visa fraud
Political Theories
Civic nationalism Religious nationalism Replacement migration Social cohesion Nativism Multiculturalism Plurinationalism Push and pull factors Ethnocentrism Foot voting
Causes
Chain migration Economic migrant Foreign worker Global labor arbitrage War Weaponized
Opposition and reform
Criticism of multiculturalism Immigration reform Opposition to immigration White genocide conspiracy theory

Mass migration refers to the migration of large groups of people from one geographical area to another. Mass migration is distinguished from individual or small-scale migration; and also from seasonal migration, which may occur on a regular basis.