Obin is a surname. Notable people with the surname include:
Jean-Marie Obin, Haitian painter, daughter of Philomé Obin Jérémy Obin (born 1993), French footballer Louis-Henri Obin (1820–1895), French opera singer Philomé Obin (1892–1986), Haitian painter Sénèque Obin (1893–1977), Haitian painter