Denman is a surname, and may refer to:
- David Denman, American actor
- Gertrude Denman, British activist, wife of Thomas Denman, 3rd Baron Denman
- Harry Denman, American evangelist
- Helen Denman, Australian swimmer
- John Leopold Denman, English architect based in Brighton
- Kay Denman, Australian politician
- Mathias Denman, one of the founders of Cincinnati, Ohio
- Stuart Denman (ice hockey), Australian ice hockey player
- Thomas Denman, 1st Baron Denman, British judge
- Thomas Denman, 3rd Baron Denman, Governor-General of Australia
- Thomas Denman (physician), expert in midwifery
- William Denman (judge), Judge of the United States Court of Appeals for the Ninth Circuit
- William Denman (publisher), New York newspaperman