| MNB | Magnetogram Narrow Band
| Others |
| MNB | Magyar Nemzeti Bank
| Others |
| MNB | Mahopac National Bank
| Others |
| MNB | Mail, News, and Bookmarks
| Others |
| MNB | Main Bus B
| Others |
| MNB | Malvern National Bank
| Others |
| MNB | McCook National Bank
| Others |
| MNB | Medicare News Brief
| Others |
| MNB | Meet New Bloggers
| Others |
| MNB | Metropolitan National Bank
| Others |
| MNB | Michigan National Bank
| Others |
| MNB | Micronet BACnet
| Others |
| MNB | Millbury National Bank
| Others |
| MNB | Money Not Borrowed
| Others |
| MNB | Mouvement National Belge
| Others |
| MNB | Move Nourish Believe
| Others |
| MNB | Muhammad Nawaz Bhatti
| Others |
| MNB | Multi National Brigade
| Others |
| MNB | Muzeul National Brukenthal, Sibiu
| Others |