Barreau is a French surname. Notable people with the surname include:
- Andre Barreau, musician
- Gaston Barreau (1883–1958), French football player and coach
- Gisèle Barreau (born 1948), French composer
- Rose-Alexandrine Barreau (1773–1843), French soldier
See also
edit- François Dominique Barreau de Chefdeville (1725–1765), French architect