Dark is a surname. Notable people with the surname include:
Alice Elliott Dark, American writer Alvin Dark (1922–2014), American baseball player and manager Ben Dark (born 1972), Australian television presenter Benjamin Dark (1793–1836), English cricketer Danny Dark (1938–2004), American TV announcer and voice actor David Dark, American writer Jacqueline Dark (1966–2023), Australian mezzo-soprano James Dark, English cricketer John Dark, British film and TV producer Gregory Dark (born 1957), American film director Lisa Lee Dark (born 1981), Welsh opera singer and voice actress
Fictional characters:
Joanna Dark, the protagonist in the video game Perfect Dark Simon Dark, Comics character