Walloons are a Gallo-Romance ethnic group native to Wallonia and the immediate adjacent regions of Flanders, France, Germany, Luxembourg and the Netherlands. Walloons primarily speak langues d'oïl such as Belgian French, Picard and Walloon. Walloons are primarily Roman Catholic, with a historical minority of Protestantism which dates back to the Reformation era.

Walloon is a Romance language that is spoken in much of Wallonia and, to a very small extent, in Brussels, Belgium; some villages near Givet, northern France; and a clutch of communities in northeastern Wisconsin, U.S.