| MAC | MAC address |
| Mac mini | Mac mini |
| Mac OS | Mac OS |
| Mac OS X | Mac OS X |
| Mac Pro | Mac Pro |
| maca | matzo |
| Macapá | Macapá |
| MacArthur Fellowship | MacArthur Fellows Program |
| Macará Ambato | Club Social y Deportivo Macará |
| Macaulay Culkin | Macaulay Culkin |
| MacBook | MacBook |
| MacBook Pro | MacBook Pro |
| Maccabi | Maccabi |
| Maccabi Tel-Awiw | Maccabi Tel Aviv |
| MacCarthy Island | MacCarthy Island |
| Maccartyzm | McCarthyism |
| MacCuill | Mac Cuill |
| MACD | MACD |
| Mace Windu | Mace Windu |
| Macedon | Macedonia |
| Macedonia | Republic of Macedonia |
| Macedonia Wschodnia i Tracja | East Macedonia and Thrace |
| Macedonia Zachodnia | West Macedonia |
| Macedonia Środkowa | Central Macedonia |
| Macedonka | Macedonian |
| Macedończycy | Macedonians |
| Macedończyk | Macedonian |
| macedoński | Macedonian |
| Maceió | Maceió |
| Macerata | Macerata |
| MacGyver | MacGyver |
| Mach | Mach |
| Machabeusze | Maccabees |
| Machaczkała | Makhachkala |
| Machado de Assis | Joaquim Maria Machado de Assis |
| Machaira | Makhaira |
| Machajrodonty | Machairodontinae |
| Machanidas | Machanidas |
| Machapuchare | Machapuchare |
| machać | wave |
| Macheront | Machaerus |
| Machiko Hasegawa | Machiko Hasegawa |
| machina oblężnicza | siege engine |
| Machinima | Machinima |
| Machismo | Phallocentrism |
| MACHO | Massive compact halo object |
| Machu Picchu | Machu Picchu |
| Machzor | Mahzor |
| macica | womb |
| Maciej | Matthew |
| Maciej Apostoł | Saint Matthias |
| Maciej Korwin | Matthias Corvinus of Hungary |
| Maciej Sarbiewski | Maciej Kazimierz Sarbiewski |
| Maciej Stryjkowski | Maciej Stryjkowski |
| Maciej Wołonczewski | Motiejus Valančius |
| Maciej Żurawski | Maciej Żurawski |
| macierz | fatherland |
| Macierz BCG | Growth-share matrix |
| Macierz dodatnio określona | Positive-definite matrix |
| Macierz dominująca | Diagonally dominant matrix |
| Macierz dołączona | Adjugate matrix |
| Macierz dyskowa | Disk array |
| Macierz Frobeniusa | Frobenius matrix |
| Macierz Grama | Gramian matrix |
| Macierz gęstości | Density matrix |
| Macierz Hadamarda | Hadamard matrix |
| Macierz hermitowska | Hermitian matrix |
| Macierz Hilberta | Hilbert matrix |
| Macierz jednostkowa | Identity matrix |
| Macierz jądrowa | Nuclear matrix |
| Macierz klatkowa | Block matrix |
| Macierz kowariancji | Covariance matrix |
| Macierz nilpotentna | Nilpotent matrix |
| Macierz normalna | Normal matrix |
| Macierz ortogonalna | Orthogonal matrix |
| Macierz S | S matrix |
| Macierz schodkowa | Row echelon form |
| macierz stochastyczna | stochastic matrix |
| Macierz Toeplitza | Toeplitz matrix |
| Macierz unitarna | Unitary matrix |
| macierzanka | thyme |
| Macierzanka piaskowa | Thymus praecox |
| Macierzanka pospolita | Thyme |
| Macierzanka tymianek | Thyme |
| Macierze Pauliego | Pauli matrices |
| macierzyński | maternity |
| Macina | Niger Inland Delta |
| Macintosh | Macintosh |
| Macintosh Plus | Macintosh Plus |
| macka | tentacle |
| Mackenzie | Mackenzie River |
| Mackie Majcher | Mack the Knife |
| mackowaty | tentacular |
| Macky Sall | Macky Sall |
| MACLisp | Maclisp |
| Macobraj | Matzah brei |
| macocha | stepmother |
| Macquarie | Macquarie Island |
| Macrianus II | Macrianus Minor |
| Macropedius | Macropedius |
| Macrovipera | Macrovipera |
| Mactan | Mactan |
| MacTutor History of Mathematics archive | MacTutor History of Mathematics archive |
| Macworld | Macworld |
| maczeta | machete |
| Maczicze | Maxixe |
| Maczugowiec błonicy | Corynebacterium diphtheriae |
| Mad Max | Mad Max |
| Madagaskar | Madagascar |
| Madagaskarniki | Mesite |
| Madame Butterfly | Madama Butterfly |
| Madame du Barry | Madame du Barry |
| Madame Guyon | Jeanne Marie Bouvier de la Motte Guyon |
| Madame Pompadour | Madame de Pompadour |
| Madame Roland | Madame Roland |
| Madang | Madang Province |
| Madchester | Madchester |
| Maddalena | Maddalena Pass |
| Maddie Fitzpatrick | Madeline Fitzpatrick |
| Maddox | Maddox |
| Made in Heaven | Made in Heaven |
| Madeira | Madeira River |
| Madeleine Albright | Madeleine Albright |
| Madeleine McCann | Disappearance of Madeleine McCann |
| Madeleine Stowe | Madeleine Stowe |
| Madera | Madeira |
| Madhjamaka | Madhyamaka |
| Madhuri Dixit | Madhuri Dixit |
| Madhwa | Madhvacharya |
| Madhwa Anandatirtha | Madhvacharya |
| Madhya Pradesh | Madhya Pradesh |
| Madison | Madison |
| Madison Square Garden | Madison Square Garden |
| Madonna | Madonna |
| Madonna Benois | The Benois Madonna |
| Madonna Sykstyńska | Sistine Madonna |
| Madonna w grocie | Virgin of the Rocks |
| Madonna z kądzielą | Madonna of the Yarnwinder |
| Madras | Chennai |
| Madre de Dios | Madre de Dios River |
| Madredeus | Madredeus |
| Madriz | Madriz |
| Madryt | Madrid |
| Madryt Atocha | Atocha |
| Madryt Chamartín | Chamartín Station |
| Madulain | Madulain |
| Madura | Madura Island |
| Maduraj | Madurai |
| Madziarozaur | Magyarosaurus |
| Madziaryzacja | Magyarization |
| Madżdal Szams | Majdal Shams |
| Madżid Abdullah | Majed Abdullah |
| Mae West | Mae West |
| MAEA | IAEA |
| Maes Howe | Maeshowe |
| maestro | maestro |
| Maeve | Medb |
| Maewo | Maewo |
| Mafeking | Mafikeng |
| mafia | mafia |
| Mafia rosyjska | Russian Mafia |
| Mafia sołncewska | Solntsevskaya bratva |
| Mafikeng | Mafikeng |
| mafioso | mafioso |
| Mafra | Mafra |
| mag | magician |
| Mag Mell | Mag Mell |
| Magadan | Magadan |
| Magadino | Magadino |
| Magallanes Santiago | Club Deportivo Magallanes |
| Magangué | Magangué |
| Magas | Magas |
| magazyn | storehouse |
| magazynier | warehouseman |
| magazynowanie produktów rolnych | agricultural storage |
| Magda | Maggie |
| Magda Lupescu | Magda Lupescu |
| Magda Szabó | Magda Szabó |
| Magda Vášáryová | Magdaléna Vášáryová |
| Magdala | Magdala |
| Magdalena | Madeleine |
| Magdalena Abakanowicz | Magdalena Abakanowicz |
| Magdalena Augusta Anhalt-Zerbst | Magdalena Augusta of Anhalt-Zerbst |
| Magdalena de Valois | Madeleine de Valois |
| Magdalena Forsberg | Magdalena Forsberg |
| Magdalena Malejewa | Magdalena Maleeva |
| Magdalena Neuner | Magdalena Neuner |
| Magdaleński | Magdalenian |
| Magdaleński okres | Magdalenian |
| Magdeburg | Magdeburg |
| Magdi Rúzsa | Magdolna Rúzsa |
| Magellan | Magellan probe |
| magenta | magenta |
| Maggia | Maggia |
| Maggie Cheung | Maggie Cheung |
| Maggie Gyllenhaal | Maggie Gyllenhaal |
| Maggie Q | Maggie Q |
| Maggie Simpson | Maggie Simpson |
| Maggie Smith | Maggie Smith |
| Maggiore | Lake Maggiore |
| Maghreb | Maghreb |
| magia | magic |
| Magia chaosu | Chaos magic |
| Magia sympatyczna | Sympathetic magic |
| Magic Johnson | Magic Johnson |
| Magic Knight Rayearth | Magic Knight Rayearth |
| Magickk | Magick |
| Magiczna karuzela | The Magic Roundabout |
| Magiczne oko | Magic eye tube |
| Magiczne rondo | Magic Roundabout |
| magiczny | magic |
| magiel | wringer |
| Magilla | Magilla Gorilla |
| magister | Master (''of Science etc.'') |
| Magister equitum | Master of the Horse |
| Magisterium Kościoła | Magisterium |
| Magistrala | Bus |
| Magistrala Adriatycka | Adriatic Highway |
| Maglaj | Maglaj |
| Magliaso | Magliaso |
| Maglić | Maglic |
