Krol is a surname and may refer to:
- George A. Krol, American ambassador to Belarus
- Henk Krol (born 1950), Dutch journalist
- Jack Krol (1936-1994), American baseball coach and manager
- Joe Krol (born 1919), Canadian Football League player
- John Krol (1910-1996), Roman Catholic Cardinal
- Ruud Krol (born 1949), Dutch footballer and coach
- Sebastiaen Jansen Krol, Director-General of New Netherland
Król is a Polish surname meaning "king" and may refer to:
- Joachim Król (born 1957), German actor of Polish descent
- Kamil Król (born 1987), Polish football (soccer) player
- Krzysztof Król (born 1987), Polish football (soccer) player
- Paweł Król (born 1987), Polish football (soccer) player