Maxwell Jacob Friedman (MJF) is an American professional wrestler.
MJF may also refer to:
- Madheshi Jana Adhikar Forum, Nepal (Madhesi People's Rights Forum, Nepal), former political party in Nepal (2007–2015)
- Madheshi Jana Adhikar Forum, Nepal (Loktantrik), former political party in Nepal (2009–2017)
- MJF Holdings, holding company of Dilmah tea company in Sri Lanka
- Mosjøen Airport (IATA: MJF), an airport in Kjærstad, Norway
- Multi Jet Fusion, a technique used in 3D Printing