| Mu | Mu |
| Mu Ngiki | Rennell |
| Muaddhin | Almuadem |
| Muammar al-Gaddafi | Muammar al-Gaddafi |
| Much Wenlock | Wenlock |
| MUD | Multi-user dungeon |
| mudder | lama |
| mudderbanke | planícies lodosas |
| Mudderdrage | Kinorhyncha |
| Muddy Waters | Muddy Waters |
| muffe | manga |
| muflon | muflăo |
| Mufti | Mufti |
| Muggler | Muggle |
| Muhammad Ali | Muhammad Ali |
| Muhammad Ali Pasha | Mehmet Ali |
| Muhammad ibn Mūsā al-Khwārizmī | Al-Khwarizmi |
| Muhammad Yunus | Muhammad Yunus |
| Muhammed | Maomé |
| Muhammed Ali Jinnah | Muhammad Ali Jinnah |
| Muhammed Mossadegh | Mohammed Mossadegh |
| Muhammed-tegningerne | Polêmica dos cartoons da Jyllands-Posten sobre Maomé |
| Muharram | Muharram |
| Mujahid | Mujahideen |
| muldjord | terra |
| muldvarp | toupeira |
| muldyr | mula |
| Mulhouse | Mulhouse |
| mulig | possível |
| Mulig verden | Mundo possível |
| Mullah | Mulá |
| Mullingar | Mullingar |
| multebær | amora-branca-silvestre |
| Multicast | Multicast |
| multilateral aftale | acordos multilaterais |
| Multimedia | Multimédia |
| Multimedieafspiller | Tocador de mídia |
| multimedieteknologi | tecnologia multimédia |
| Multimeter | Multímetro |
| multinationalt selskab | empresas multinacionais |
| Multipel sklerose | Esclerose múltipla |
| Multiplayer | Jogos multi-jogadores |
| Multiplikation | Multiplicação |
| multispektral skanner | scanner multi-espectro |
| Multitasking | Multitarefa |
| Multithreading | Hyper-threading |
| Mumbai | Bombaim |
| Mumie | Múmia |
| mums | mmm |
| Munchmuseet | Munchmuseet |
| mund | boca |
| mund- og klovsyge | febre aftosa |
| Mundharmonika | Gaita |
| Mundilfare | Mundilfari |
| mundlam | estarrecido |
| Mungo Park | Mungo Park |
| munk | monge |
| Munkebo Kommune | Munkebo |
| munkegrib | abutre-fusco |
| munkering | sonho |
| Munkfors kommun | Munkfors |
| Munster | Munster |
| munter | alegre |
| Muppets | The Muppet Show |
| mur | baluarte |
| Murad I | Murad I |
| Murasaki Shikibu | Murasaki Shikibu |
| Murcia | Região de Múrcia |
| Murdoc | Murdoc |
| murer | pedreiro |
| Mureş | Mureş |
| Murmansk | Murmansk |
| Murmansk oblast | Oblast de Murmansk |
| murmeldyr | marmota |
| Murphy's lov | Lei de Murphy |
| Murray | Murray |
| Murray Rothbard | Murray Rothbard |
| Murska Sobota | Murska Sobota |
| mursten | de |
| murværk | alvenaria |
| mus | rato |
