Sar is a surname. Notable people with the surname include:
Abdoulaye Sar Edwin van der Sar (born 1970), Dutch association football goalkeeper Franco Sar (1933–2018), Italian Olympic decathlete Maya Sar (born 1981), Bosnian singer-songwriter Nikhilananda Sar (born 1936), Indian politician Pol Pot (1925–1998, born Saloth Sar), Cambodian dictator