Leak or Leaks is the surname of:
Leak:
Bill Leak (1956–2017), Australian cartoonist and painter
Bill Leak (sportsman) (1917–2007), Australian rules footballer and cricketer
Bruce Leak, American inventor and entrepreneur
Chris Leak (born 1985), American former football quarterback
Hector Leak (1887–1976), British statistician
James Leak, 19th century English bare-knuckle prize fighter
John Leak (1892–1972), Australian First World War recipient of the Victoria Cross
Maysa Leak (born 1966), American jazz singer better known simply as Maysa
Leaks:
Manny Leaks (born 1945), American Basketball Association and National Basketball Association player
Roosevelt Leaks (born 1953), African-American college football and National Football League player, member of the College Football Hall of Fame
