Barf may refer to:
- Vomit (medically, emesis)
- Barf (Lake District), a hill in Cumbria, England
- Barf, a half-man, half-dog character in the movie Spaceballs, played by John Candy
- Barf (soap), a line of soaps made by the Paxan company of Iran
BARF may refer to,
- BARF Diet, bones and raw food diet for pets
- BARF, in chemistry, the tetra-aryl borate non-coordinating anion 4]−, commonly abbreviated as −
- Bay Area Rock Fest, a music festival in the San Francisco Bay Area