Frappier is a surname. Notable people with the surname include:
Armand Frappier (1904–1991), Canadian physician, microbiologist, and expert on tuberculosis J. H. Frappier (1931–2019), American politician Jill Frappier (born 1944), British-Canadian voice actress José Hazim Frappier (born 1951), Dominican Republic physician, academic and politician Roger Frappier (born 1945), Canadian producer, director, editor, actor, and screenwriter
Other Bad News Brown, musician; born Paul Frappier Prix Armand-Frappier, an award by the Government of Quebec, part of the Prix du Québec