| Mrs | pani |
| Mrs. and Mr | państwo |
| Mrs. Robinson | rycząca czterdziestka |
| Mrągowo | Mrągowo |
| Mrągowo County | Powiat mrągowski |
| MS | stwardnienie rozsiane |
| MS Berge Stahl | MS Berge Stahl |
| MS Caronia | MS Vistafjord |
| MS Freedom of the Seas | MS Freedom of the Seas |
| MS Queen Victoria | Queen Victoria |
| MS-DOS | MS-DOS |
| MS-DOS Editor | MS-DOS Editor |
| MSDN Academic Alliance | MSDN Academic Alliance |
| MSISDN | MSISDN |
| MSL | Poziom morza |
| MSN | MSN |
| MSN Hotmail | Hotmail |
| MSN Messenger | MSN Messenger |
| MSN TV | Telewizja internetowa |
| MSO Word | MSO Word |
| Mstislav | Mścisław |
| Mstislav I of Kiev | Mścisław I Harald |
| Mstislav II of Kiev | Mścisław II Chrobry |
| Mstislav of Chernigov | Mścisław I Chrobry |
| Mstislav Rostropovich | Mścisław Rostropowicz |
| Mstislav the Bold | Mścisław II Udały |
| Mstsislaw | Mścisław |
| Mstsislaw Voivodeship | Województwo mścisławskie |
| MSV Duisburg | MSV Duisburg |
| MSV-Arena | MSV Arena |
| Mswati III of Swaziland | Mswati III |
| MSX | MSX |
| Mszana Dolna | Mszana Dolna |
| Mszczonów | Mszczonów |
| MT-LB | MTLB |
| MTA | Massachusetts Bay Transportation Authority |
| Mtatsminda Pantheon | Panteon w Rzymie |
| MtDNA‚ mitochondrial DNA | MtDNA |
| Mthatha | Umtata |
| MTK Hungária FC | MTK Hungária Budapeszt |
| MTS | MTS |
| Mtsensk | Mceńsk |
| Mtskheta | Mccheta |
| MTT Turbine SUPERBIKE | MTT Superbike |
| MTV | MTV |
| MTV Movie Awards | MTV Movie Awards |
| MTV Russia | MTV |
| MTV Thailand | MTV |
| MTV Ukraine | MTV Ukraine |
| MTV Unplugged | MTV Unplugged |
| MTV Unplugged in New York | MTV Unplugged in New York |
| MTV Video Music Award for Best Art Direction | MTV Video Music Award for Best Art Direction |
| MTV Video Music Award for Best Dance Video | MTV Video Music Award for Best Dance Video |
| MTV Video Music Award for Best Direction | MTV Video Music Award for Best Direction |
| MTV Video Music Award for Best Female Video | MTV Video Music Award for Best Female Video |
| MTV Video Music Award for Best Hip-Hop Video | MTV Video Music Award for Best Hip Hop Video |
| MTV Video Music Award for Best Male Video | MTV Video Music Award for Best Male Video |
| MTV Video Music Award for Best Rap Video | MTV Video Music Award for Best Rap Video |
| MTV Video Music Award for Video of the Year | MTV Video Music Award for Best Video of the Year |
| MTV Video Music Awards | MTV Video Music Awards |
| mu | mi |
| Mu Arae | Mi Arae |
| Mu Draconis | Arrakis |
| Mu Ko Ang Thong National Park | Prowincja Ang Thong |
| Mu Online | Mu Online |
| Mu-metal | Mumetal |
| Mu-recursive function | Funkcja rekurencyjna |
| MUA | MUA |
| Muammar al-Gaddafi | Muammar al-Kadafi |
| Muaskar | Muaskar |
| Mubarak Hassan Shami | Mubarak Hassan Shami |
| Muc | Monachium |
| Mucc | Mucc |
| much | wiele |
| Mucia Tertia | Mucia Tercja |
| Muckross Abbey | Muckross Abbey |
| Mucopolysaccharidosis | Mukopolisacharydoza |
| Mucor mucedo | Pleśniak biały |
| Mucormycosis | Mukormykoza |
| mucous membrane | błona śluzowa |
| Mucuna pruriens | Świerzbiec właściwy |
| mud | błoto |
| Mud avalanche | Powódź błotna |
| mud flat | równina błotna |
| Mud flats | Wat |
| mud pie | babka z piasku |
| Mud pot | Solfatara |
| Mud slide | Powódź błotna |
| Mud volcano | Wulkan błotny |
| Mud-socket | Ůyýka |
| Mudanjiang River | Mudanjiang |
| Mudau | Mudau |
| mudblood | szlama |
| muddle | zamęt |
| muddy | błotnisty |
| Muddy Waters | Muddy Waters |
| Mudfish | Amiokształtne |
| mudguard | błotnik |
| Mudi | Mudi |
| Mudpuppy | Odmieńcowate |
| Mudéjar | Mudejar |
| muezzin | muezin |
