Moreau is a French surname. Notable people with the surname include:
Auguste Francois Moreau (1860–1910), prominent Victorian and Art Nouveau sculptor
Art Moreau, American politician
Basil Anthony Marie Moreau (1799–1873), French priest
Charles Paul Narcisse Moreau (1837–1916), French soldier and mathematician (and possible chess player)
Christophe Moreau (born 1971), French cyclist
Daniel Moreau Barringer (1806–1873), American politician
Émile Moreau (disambiguation)
Ethan Moreau (born 1975), Canadian ice hockey player
Francois Moreau (1857–1930), Victorian, Art Nouveau and Art Deco sculptor; worked with Louis Auguste Moreau
Gustave Moreau (1826–1898), French Symbolist painter and sculptor
Hégésippe Moreau (1810–1838), French lyric poet
Hervé Moreau, étoile at the Ballet de l'Opéra National de Paris
Hippolyte Francois Moreau (1832–1927), Victorian and Art Nouveau sculptor
Jacques Moreau (1933–2017), French politician
Jacques-Joseph Moreau (1804–1884), French psychiatrist
Jean-Baptiste Moreau (1656–1733), French composer
Jean Jacques Moreau (1923-2014), French mathematician
Jean Victor Marie Moreau (1763–1813), French general
Jeanne Moreau (born 1928), French actress
Louis Auguste Moreau (1855–1919), Victorian, Art Nouveau and Art Deco sculptor; worked with H. Francois Moreau
Louis-Mathurin Moreau, French playwright
Louis Moreau-Lislet (1767-1832), distinguished Louisiana jurist and translator
Marguerite Moreau (born 1977), American actress
Mathieu Moreau (born 1983), French footballer
Mathurin Moreau (1822–1912), French sculptor
Mederic Louis Elie Moreau de Saint-Mery (1750–1819), French historian and lawyer
Pierre Moreau (born 1957), Canadian politician
Reginald Ernest Moreau (1897–1970), British ornithologist
Sylvie Moreau (born 1964), Canadian actress
Yolande Moreau (born 1953), Belgian actress and film director