APW may refer to:
- Air pressurized water, a stored pressure water fire extinguisher.
- All Pro Wrestling, a professional wrestling promotion
- Alternative Pro Wrestling, a professional wrestling promotion based in Georgia
- Faleolo International Airport, Apia, Samoa, from its IATA airport code
- People's Provincial Assembly (Assemblée populaire de wilaya), the political body governing Algeria's provinces
- ICAO code for Arrow Air
- All Points West Music & Arts Festival
- Angiosperm Phylogeny Website
- Augmented Plane Wave, a method for electronic-structure calculations
- AP World History
- AmeriPure Water Company, a plumbing, heating and air conditioning company in the Kansas City Metro.