| MDN | Blank database template (MS Access) 
| Others |
| MDN | Mac Developer Network
| Others |
| MDN | MAC Distribution Network
| Others |
| MDN | MAC Distributor Network
| Others |
| MDN | Macintosh Developer Network
| Others |
| MDN | Madison Municipal Airport, Madison, Wisconsin USA
| Others |
| MDN | Mail Delivery Notification
| Others |
| MDN | Mainichi Daily News
| Others |
| MDN | Major Device Number
| Others |
| MDN | Marcos de Niza
| Others |
| MDN | Medical Device Network
| Others |
| MDN | Mercury Deposition Network
| Others |
| MDN | Meriden Station (CT Rail - AMTK)
| Others |
| MDN | Message Delivery Notification
| Others |
| MDN | Message Disposition Notification
| Others |
| MDN | Metadata Developer Network
| Others |
| MDN | Midland Daily News
| Others |
| MDN | Midland Daily News ( Midland, Michigan)
| Others |
| MDN | Midland, Michigan
| Others |
| MDN | Mine Developer Network
| Others |
| MDN | Missouri Digital News
| Others |
| MDN | Mobile Data Network
| Others |
| MDN | Mobile Device Number
| Others |
| MDN | Mobile Directory Number
| Others |
| MDN | Morning Day Night
| Others |
| MDN | Mountain Dew Network
| Others |
| MDN | Movimiento Democratico Nacionalista
| Others |
| MDN | Mozila Development Network
| Others |
| MDN | Mozilla Developer Network
| Others |
| MDN | Multilingual Domain Name
| Others |
| MDN | Multiple Domain Network
| Others |
| MDN | Music Discovery Network
| Others |
| MDN | Mutual Defense Nation
| Others |
| MDN | Mutual Defense Network
| Others |
| MDN | Mystro Digital Navigator
| Others |