Beaubien is a surname. Notable people with the surname include:
Arthur-Lucien Beaubien (1879–1971), Canadian politician and farmer Charles Beaubien (1748–1794), French Canadian trader Charles H. Beaubien (1800–1864), Canadian-born American fur trader Joseph-Octave Beaubien (1824–1877), Quebec physician and political figure Layne Beaubien (born 1976), American water polo player Louis Beaubien (1837–1915), Canadian politician Louis-Philippe Beaubien (1903–1985), Canadian politician Marcel Beaubien (born c. 1942), Canadian politician Mark H. Beaubien Jr. (1942–2011), American politician Philippe de Gaspé Beaubien (1928–2025), Canadian media proprietor Pierre Beaubien (1796–1881), Canadian physician and political figure