A warthog is a wild member in the Phacochoerus genus that lives in Africa. It consists of 2 species:
- Common warthog Phacochoerus africanus
- Desert warthog Phacochoerus aethiopicus
- Cape warthog, Phacochoerus aethiopicus aethiopicus
It may also refer to:
- "Warthog", nickname for the Fairchild Republic A-10 Thunderbolt II aircraft
- "Warthog", service name used by British military for the UK version of Bronco All Terrain Tracked Carrier
- Warthog (Halo), a vehicle in the fictional Halo universe
- "Warty Warthog", the code name for the first release (version 4.10) of Ubuntu Linux
- "Wart Hog", a song by punk rock group The Ramones, on their album Too Tough to Die
- Warthog Games, an English video game studio
- Winston-Salem Warthogs, the name from 1995 to 2008 of the Winston-Salem Dash
- Harare International School, whose nickname is Warthogs