Carl or Karl Johnson may refer to:

Politicians

  • Carl L. Johnson (1898–1958), American businessman and politician
  • Carl M. Johnson (1933–2025), American businessman, farmer and politician

Scientists

  • Carl J. Johnson (1929–1988), American public health physician who opposed nuclear testing
  • Karl Johnson (virologist) (1929–2023), American researcher and academic
  • Carl H. Johnson, American biologist and academic, active since 1970s
  • Karl G. Johnson, American neuroscientist and academic, active since 1990s

Sportsmen

  • Karl Johnson (wrestler) (1883–1952), Swedish Olympic competitor
  • Carl Johnson (soccer) (1892–1970), American midfielder and Olympian
  • Carl Johnson (long jumper) (1898–1932), American track-and-field Olympic medalist
  • Carl Johnson (American football) (born 1949), offensive lineman with New Orleans Saints
  • Karl Johnson, American college football player during 1980s (List of NCAA football records)
  • Karl Johnson (rugby league), New Zealand Maori centre or second-row since 2000s

Others

  • Carl C. Johnson (1926–2023), African American aviator, one of Tuskegee Airmen in 1946
  • Karl Johnson (actor) (born 1948), Welsh stage, film and TV performer
  • Karl Baldwin Johnson (born 1961), Baptist minister and since 2025 president of the Baptist World Alliance (BWA).

Fictional characters

  • Carl Johnson (Grand Theft Auto), video game protagonist of 2004's Grand Theft Auto: San Andreas

See also

  • Karl Jónsson (1135–1213), Icelandic writer, poet and clergyman
  • Carl Jonsson (1885–1966), Swedish tug-of-war competitor
  • Charles Johnson (disambiguation)