Leonard Johnson or Len Johnson may refer to:
Sports Gridiron football Leonard Johnson (defensive back, born 1990), American football player in the US Leonard Johnson (defensive back, born 1998), American football player in the US and Canada Len Johnson (American football) (born 1946), American football center
Other sports Leonard Johnson (baseball), American baseball player Len Johnson (boxer) (1902–1974), professional boxer of the 1920s and 1930s Len Johnson (cricketer) (1919–1977), Australian cricketer Len Johnson (footballer) (1908–1942), Australian rules footballer
Others Leonard V. Johnson, Canadian politician Leonard G. Johnson (born 1953), American inventor and entrepreneur
See also Ernest Leonard Johnson (died ), South African astronomer