Vietnamese boat people were refugees who fled Vietnam by boat and ship following the end of the Vietnam War in 1975. This migration and humanitarian crisis was at its highest in the late 70s and early 80s, but continued well into the early 1990s. The term is also often used generically to refer to the Vietnamese people who left their country in a mass exodus between 1975 and 1995. This article uses the term "boat people" to apply only to those who fled Vietnam by sea.

A refugee, conventionally speaking, is a person who has lost the protection of their country of origin and who cannot or is unwilling to return there due to well-founded fear of persecution. Such a person may be called an asylum seeker until granted refugee status by the contracting state or the United Nations High Commissioner for Refugees (UNHCR) if they formally make a claim for asylum.