MNF may refer to:
Music edit
- Maata Näkyvissä Festival, Finland
Chemical elements edit
- Manganese(III) fluoride, MnF2 and MnF4
Political organizations edit
- Mizo National Front, Mizoram, India
- Mizo National Front (Democratic), split from the Mizo National Front
- Mwalimu Nyerere Foundation, Tanzania
Television shows edit
- Monday Night Football, televised National Football League
- Monday Night Football (Sky Sports), televised Premier League football
Places edit
- Monongahela National Forest, West Virginia, US
Military edit
- Multinational Force in Lebanon, an international peacekeeping force created in 1982
- Multi-National Force – Iraq, MRF-I