PAB may refer to:
- Pennsylvania Association of Broadcasters
- Panamanian balboa, ISO 4217 currency code
- Bilaspur Airport (IATA airport code)
- Pseudobulbar affect, a disorder of the expression of emotion
- Parker Center, formerly the Police Administration Building for the Los Angeles Police Department
- Planning Accreditation Board
- Poly(A)-binding protein
- Polyclonal antibody