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