French migration to the United Kingdom is a phenomenon that has occurred at various points in history. The Norman Conquest of England by William the Conqueror in 1066 resulted in the arrival of Normans, while in the 16th and 17th centuries Protestant Huguenots fled religious persecution to East London. Other waves are associated with monasticism, particularly post-conquest Benedictines and Cistercians, aristocracy fleeing the French Revolution, expulsion of religious orders by Third Republic France, and current expats.

The French diaspora consists of French people and their descendants living outside France. Countries with significant numbers of people with French ancestry include Canada and the United States, whose territories were partly colonized by France between the 17th and 19th centuries, as well as Argentina and Uruguay. Although less important than in other European countries, immigration from France to the New World was numerous from the start of the 19th century to the middle of the 20th century. As of 2013, French authorities estimate that between 2 and 3.5 million French nationals are living abroad but the diaspora includes over 30 million people.