West Flemish (Dutch:West-Vlaams, French:flamand occidental) is a dialect of the Dutch language spoken in western Belgium and adjoining parts of the Netherlands and France.

West Flemish is spoken by about a million people in the Belgian province of West Flanders, and a further 120,000 in the neighbouring Dutch coastal district of Zeelandic Flanders (and another 220,000 if Zealandic is included), and 10,000 in the northern part of the French département of Nord. Some of the main cities where West Flemish is widely spoken are Bruges, Kortrijk, Ostend, Roeselare, and Ypres. The dialects of the rest of the Dutch province of Zeeland, Zeelandic, are often included in West Flemish; these are part of a dialect continuum which proceeds further north into Hollandic.