| MNF | Madden Night Football
| Others |
| MNF | Magical Night of Football
| Others |
| MNF | Magnolia Number Foal
| Others |
| MNF | Mana, Fiji
| Others |
| MNF | Margarita Night Football
| Others |
| MNF | Marine National Force
| Others |
| MNF | Meet N F***
| Others |
| MNF | Mendocino National Forest
| Others |
| MNF | Minnesota Newspaper Foundation
| Others |
| MNF | Mizo National Front
| Others |
| MNF | Modular Networking Frame
| Others |
| MNF | Monday Night Fellowship
| Others |
| MNF | Monday Night Football
| Others |
| MNF | Monongahela National Forest
| Others |
| MNF | Moustache Not Finished
| Others |
| MNF | Multi National Force
| Others |
| MNF | Multi-National Force
| Others |
| MNF | Multi-Network Firewall
| Others |
| MNF | Multinational Force
| Others |
| MNF | My New Friend
| Others |