Mars is a surname. Notable people with the surname include:

Mademoiselle Mars, stage name of French actress Anne Salvetat (1779–1847) Adam Mars (born 1981), American artist Alastair Mars (1915–1985), British World War II submarine commander and author Alexandre Mars (born 1976), French businessman and philanthropist Betty Mars (1944–1989), French singer and actress Bruno Mars (born 1985), American singer-songwriter Chris Mars, American musician and painter Dwayne Mars (born 1989), Barbadian footballer Ed Mars (1866–1941), American baseball player Ethel V. Mars (1884–1945), American businesswoman and racehorse owner Florence Mars (1923–2006), American civil rights activist and author Forrest Mars Sr. (1904–1999), American confectionery magnate Forrest Mars Jr. (1931–2016), American confectionery magnate, son of the above and grandson of the below Franklin Clarence Mars (1883–1934), American confectionery magnate Gerald Mars (born 1933), British social anthropologist Hans-Joachim Mars (born 1926), German sports shooter Jacqueline Mars (born 1939), American confectionery magnate James Mars (1790–1880), American slave narrative author James C. Mars (1876–1944), American aviation pioneer John Mars, Canadian singer, songwriter, and percussionist John Franklyn Mars (born 1935), American confectionery magnate Johnny Mars (born 1942), American harmonica player, singer, and songwriter Kenneth Mars (1935–2011), American actor Kettly Mars (born 1958), Haitian poet and novelist Marijke Mars (born 1965), American billionaire heiress and businesswoman Melissa Mars (born 1979), French singer and actress Mick Mars, American lead guitarist for Mötley Crüe Roman Mars, American podcaster

See also for fictional characters surnamed Mars Commander Mars (disambiguation)