Look up PUF in Wiktionary, the free dictionary.
PUF may refer to:
- Physical unclonable function, in computer security, a physically-implemented secure identifier
- Presses Universitaires de France
- Permanent University Fund, for Texas public universities
- Pau Pyrénées Airport in France (IATA code: PUF)
- Por Um Fio, a Brazilian reality television show
- Poughkeepsie Underwear Factory, a historic building in New York
- Public Universal Friend (1752–1819), American preacher