Leonard Clark
Leonard or Len Clark may refer to:
- Len Stockwell, American professional baseball player
- Leonard Clark (poet), English poet and anthropologist
- Leonard Clark (explorer), American explorer, writer, and OSS colonel
- Len Clark (cricketer)
- Len Clark (countryside campaigner)
- Len Clark (footballer)
- Leonard Clark, Brisbane Lions player from the 2005 AFL draft
- Leonard Clark, candidate for the Conservative party in the Birmingham City Council election, 2011
- Leonard Clark, a character played by Tom Hollander in Paparazzi
- Leonard Clark, a character played by Herb Vigran in an episode of the television series ''Dragnet''