People with the last name Kolthoff in Indiana
- Amanda Kolthoff
- Clint Kolthoff
- David Kolthoff
- Dustin Kolthoff
- Irene Kolthoff
- Jack Kolthoff
- Jerry Kolthoff
- John Kolthoff
- June Kolthoff
- Kay Kolthoff
- Kim Kolthoff
- Kimberley Kolthoff
- Kimberly Kolthoff
- Larry Kolthoff
- Linda Kolthoff
- Marilyn Kolthoff
- Phyllis Kolthoff
- S Kolthoff
- Sam Kolthoff
- Sara Kolthoff
- Shelley Kolthoff
- Shirley Kolthoff
- Troy Kolthoff
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