| Mozilla Calendar Project | Mozilla Calendar |
| Mozilla Corporation | Mozilla Corporation |
| Mozilla Corporation software rebranded in Debian | IceWeasel |
| Mozilla Firefox | Mozilla Firefox |
| Mozilla Foundation | Fondation Mozilla |
| Mozilla Organization | Mozilla |
| Mozilla Public License | Mozilla Public License |
| Mozilla Suite | Mozilla Application Suite |
| Mozilla Sunbird | Mozilla Sunbird |
| Moçambola | Championnat du Mozambique de football |
| Moča | Urine |
| Mošovce | Mošovce |
| MP | député |
| MPEG | Algorithme MPEG |
| MPEG transport stream | Transport Stream |
| Mpemba effect | Effet Mpemba |
| Mpumalanga | Mpumalanga |
| Mqabba | Mqabba |
| Mr | Monsieur |
| Mr Puntila and his Man Matti | Maître Puntila et son valet Matti |
| Mr. | Monsieur |
| Mrazig | Mrazig |
| Mreznica | Rétine |
| Mridangam | Mridang |
| Mrkonjić Grad | Mrkonjić Grad |
| Mrkonjić Grad incident | Incident de Mrkonjić Grad |
| Mrs | Mme |
| Mrs Henderson Presents | Madame Henderson présente |
| Mrs. | Mme |
| Mrugavani National Park | Parc national de Mrugavani |
| MS | titulaire d'une maîtrise ès sciences |
| MS Berge Stahl | Berge Stahl |
| MS Freedom of the Seas | Freedom of the Seas |
| MS Queen Victoria | Queen Victoria |
| MS-DOS | MS-DOS |
| MS-DOS Editor | EDIT |
| MSc | titulaire d'une maîtrise ès sciences |
| MSDN Academic Alliance | MSDN Academic Alliance |
| MSISDN | Mobile Station ISDN Number |
| MSL | Niveau de la mer |
| MSN | Microsoft Network |
| MSN Hotmail | Hotmail |
| MSN Messenger | MSN Messenger |
| MSN TV | Télévision par ADSL |
| MSO Word | MSO Word |
| Msta River | Msta |
| Mstislav I of Kiev | Mstislav Ier |
| Mstislav III of Kiev | Mstislav III Boris de Kiev |
| Mstislav Keldysh | Mstislav Keldysh |
| Mstislav of Chernigov | Mstislav |
| Mstislav Rostropovich | Mstislav Rostropovitch |
