Kempthorne
Kempthorne is a Cornish surname, and may refer to:
- Dirk Kempthorne, American politician
- John Kempthorne (Royal [Navy officer)], Cornish admiral
- John Kempthorne (hymnwriter), Cornish clergyman
- John [Augustine Kempthorne], Bishop of Lichfield
- Oscar Kempthorne, British statistician
- Patricia Kempthorne, American former First Lady of Idaho