A war hawk is a person who actively supports a war.
War hawk, Warhawk or similar may also refer to:
- Warhawk (1986 video game), a vertically scrolling video game, released by Firebird software
- Warhawk (1995 video game), a Sony PlayStation game
- Warhawk (2007 video game), a multiplayer-only PlayStation 3 remake of the PlayStation game
- Curtiss P-40 Warhawk, an American World War II-era fighter aircraft
- Warhawk (comics), a number of comic characters
- The nickname for athletic teams from:
- Arrowhead High School
- Auburn University at Montgomery – see Auburn Montgomery Warhawks
- Calhoun Community College
- Great Crossing High School in Georgetown, Kentucky
- University of Louisiana at Monroe – see Louisiana–Monroe Warhawks
- University of Wisconsin–Whitewater – see Wisconsin–Whitewater Warhawks
- James Madison High School (California)
- James Madison High School (Fairfax County, Virginia)
- Marytown, Wisconsin
- McMurry University
- Mount Vernon–Enola High School
- North Chicago Community High School
- North Mahaska Community High School (New Sharon, Iowa)
- Westerville Central High School