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- Jerry Lacy
- Perry Lafferty
- Doug LaFollette
- Raef LaFrentz
- Roswell Lamson
- Ann Landers
- The Lane Sisters §
- Harry Langdon
- Frank Lanning
- Jeff Larish
- Patty Larkin
- Joe Laws
- Elmer Layden
- Jim Leach
- Cloris Leachman
- Frederick Leadbetter
- William P. Leahy §
- William Daniel Leahy
- Frances Lee
- Laura Leighton
- Aldo Leopold
- Amy Leslie
- Alexander Levi §
- Jack Lewis
- John Lewis
- Thurlow Lieurance
- Joe Lillard §
- Edward Lindberg
- Everett Lindsay
- Margaret Lindsay
- Ron Livingston
- Bob Locker
- Al Lohman
- Babe London
- Nia Long §
- Mathias Loras §
- Tyler Lorenzen
- Kevin Love
- Phyllis Love
- Herschel C. Loveless
- Robert Lucas §
- Larry Lujack
- Tiny Lund
- Mike Lynch
- Raymond J. Lynch
- Emmett Lynn
- Sue Lyon
Read more about this topic: List Of People From Iowa