Cool is a surname. Notable people with the surname include:
Fabien Cool (born 1972), French soccer player Kenton Cool (born 1973), British mountaineer
See also Tré Cool (born 1972, as Frank Edwin Wright III), U.S. drummer from the band Green Day Kaul (), a surname also spelled as "Cool" Mister Cool (disambiguation) Cole (surname) Cooling (surname) Cools (surname) McCool (surname)