François Debeauvais (1902 in Rennes - 20 March 1944, Colmar) was a Breton nationalist and wartime collaborator with Nazi Germany.
His name is also spelled in many "Breton" variants: François Debauvais, Fransez Debeauvais, Fransez Debauvais, Fañch Debeauvais, Fañch Debauvais, Fañch deb.