| matrioska | Russian doll |
| Matrix | The Matrix |
| matriz | mold |
| matriz activa | active matrix |
| Matriz BCG | Growth-share matrix |
| matriz cuadrada | square matrix |
| matriz de adjuntos | adjoint |
| matriz de cofactores | adjoint |
| Matriz de covarianza | Covariance matrix |
| Matriz de Hankel | Hankel matrix |
| matriz de puntos | dot matrix |
| Matriz de Toeplitz | Toeplitz matrix |
| Matriz de Vandermonde | Vandermonde matrix |
| Matriz definida positiva | Positive-definite matrix |
| matriz diagonal | diagonal matrix |
| Matriz diagonalizable | Diagonalizable matrix |
| matriz extracelular | extracellular matrix |
| Matriz hermitiana | Hermitian matrix |
| Matriz Hessiana | Hessian matrix |
| Matriz identidad | Identity matrix |
| Matriz nilpotente | Nilpotent matrix |
| Matriz normal | Normal matrix |
| Matriz ortogonal | Orthogonal matrix |
| Matriz semejante | Similar matrix |
| Matriz unimodular | Unimodular matrix |
| Matriz unitaria | Unitary matrix |
| matrona | midwife |
| Matroska | Matroska |
| matrícula | registration |
| matrícula escolar | college fees |
| Matrículas automovilísticas de Eslovaquia | Slovak car registration plates |
| Matrículas automovilísticas de Polonia | Polish car number plates |
| Mats Wilander | Mats Wilander |
| Matsukata Masayoshi | Matsukata Masayoshi |
| Matsuo Bashō | Matsuo Bashō |
| Matt Bellamy | Matthew Bellamy |
| Matt Biondi | Matt Biondi |
| Matt Damon | Matt Damon |
| Matt Dillon | Matt Dillon |
| Matt Groening | Matt Groening |
| Matt Harding | Matt Harding |
| Matt Hardy | Matt Hardy |
| Matt Heafy | Matt Heafy |
| Matt LeBlanc | Matt LeBlanc |
| Matt Ridley | Matt Ridley |
| Matt Stone | Matt Stone |
| Matt Willis | Matt Willis |
| Matten bei Interlaken | Matten bei Interlaken |
| Matteo Bartoli | Matteo Bartoli |
| Matteo Maria Boiardo | Matteo Maria Boiardo |
| Matteo Ricci | Matteo Ricci |
| Matthew Arnold | Matthew Arnold |
| Matthew Barney | Matthew Barney |
| Matthew Broderick | Matthew Broderick |
| Matthew David Lewis | Matthew Lewis |
| Matthew Flinders | Matthew Flinders |
| Matthew Fox | Matthew Fox |
| Matthew Herbert | Matthew Herbert |
| Matthew Lewis | Matthew Lewis |
| Matthew McConaughey | Matthew McConaughey |
| Matthew Moore | Matthew Moore |
| Matthew Perry | Matthew Perry |
| Matthew Shepard | Matthew Shepard |
| Matthew Szulik | Matthew Szulik |
| Matthew Tuck | Matthew Tuck |
| Matthias Claudius | Matthias Claudius |
| Matthias Grünewald | Matthias Grünewald |
| Matthias Jakob Schleiden | Matthias Jakob Schleiden |
| Matthias Sammer | Matthias Sammer |
| Matthiola | Matthiola |
| Matthäus Merian | Matthäus Merian |
| Matti Vanhanen | Matti Vanhanen |
| Matti Yrjänä Joensuu | Matti Yrjänä Joensuu |
| Mattstetten | Mattstetten |
| Matucana | Matucana |
| Matvei Zajarov | Matvei Zakharov |
| Matzendorf | Matzendorf |
| Matías | Matthew |
| Matías Almeyda | Matías Almeyda |
| Matías Corvino | Matthias Corvinus of Hungary |
| Matías Delgado | Matías Emilio Delgado |
| Matías el Apóstol | Saint Matthias |
| Matías Fernández | Matías Fernández |
| matón | bully |
| MAU | Media Access Unit |
| Mau Mau | Mau Mau Uprising |
| Mauborget | Mauborget |
| Maud | Maud |
| Maud de Gales | Maud of Wales |
| Maude Flanders | Maude Flanders |
| Maui | Maui |
| Mauke | Mauke |
| Mauleón-Licharre | Mauléon-Licharre |
| maullar | mew |
| maullido | yowl |
| Maumoon Abdul Gayoom | Maumoon Abdul Gayoom |
| Mauna Kea | Mauna Kea |
| Mauna Loa | Mauna Loa |
| Maunga Terevaka | Terevaka |
| Mauno Koivisto | Mauno Koivisto |
| Maupihaa | Maupihaa |
| Maupiti | Maupiti |
| Mauraz | Mauraz |
| Mauregato | Mauregato of Asturias |
| Mauren | Mauren |
| Mauretania | Mauretania |
| Maurice | Mauritius |
| Maurice Allais | Maurice Allais |
| Maurice Bishop | Maurice Bishop |
| Maurice Blanchot | Maurice Blanchot |
| Maurice Blondel | Maurice Blondel |
| Maurice Boitel | Maurice Boitel |
| Maurice Bourgès-Maunoury | Maurice Bourgès-Maunoury |
| Maurice Béjart | Maurice Béjart |
| Maurice Chevalier | Maurice Chevalier |
| Maurice Couve de Murville | Maurice Couve de Murville |
| Maurice de Vlaminck | Maurice de Vlaminck |
| Maurice Denis | Maurice Denis |
| Maurice Druon | Maurice Druon |
| Maurice Gamelin | Maurice Gamelin |
| Maurice Greene | Maurice Greene |
| Maurice Herbert Dobb | Maurice Dobb |
| Maurice Jarre | Maurice Jarre |
| Maurice Leblanc | Maurice Leblanc |
| Maurice Maeterlinck | Maurice Maeterlinck |
| Maurice Merleau-Ponty | Maurice Merleau-Ponty |
| Maurice Ohana | Maurice Ohana |
| Maurice Papon | Maurice Papon |
| Maurice Prendergast | Maurice Prendergast |
| Maurice Quentin de La Tour | Maurice Quentin de La Tour |
| Maurice Ravel | Maurice Ravel |
| Maurice Thorez | Maurice Thorez |
| Maurice Utrillo | Maurice Utrillo |
| Maurice Wilkes | Maurice Vincent Wilkes |
| Maurice Wilkins | Maurice Wilkins |
| Mauricio | Mauritius |
| Mauricio el Tebano | Saint Maurice |
| Mauricio Gugelmin | Mauricio Gugelmin |
| Mauricio Macri | Mauricio Macri |
| Mauricio Pellegrino | Mauricio Pellegrino |
| Mauricio Pineda | Mauricio Pineda |
| Mauricio Rugendas | Johann Moritz Rugendas |
| Mauritania | Mauritania |
| Mauritania Cesariense | Mauretania Caesariensis |
| Mauritania Tingitana | Mauretania Tingitana |
| Mauritia flexuosa | Moriche Palm |
| Mauritshuis | Mauritshuis |
| Maurizio Pollini | Maurizio Pollini |
| Mauro Camoranesi | Mauro Camoranesi |
| Mauro Giuliani | Mauro Giuliani |
| Mauro Silva | Mauro Silva |
| Maury | Maury |
| Maurycy Gottlieb | Maurycy Gottlieb |
| Maus | Maus |
| mausoleo | mausoleum |
| Mausoleo de Augusto | Mausoleum of Augustus |
| Mausoleo de Gala Placidia | Mausoleum of Galla Placidia |
| Mausoleo de Halicarnaso | Mausoleum of Maussollos |
| Mausoleo de Santa Constanza | Santa Costanza |
| Mausoleo de Sun Yat-sen | Sun Yat-sen Mausoleum |
| Mausolo | Mausolus |
| Mauthausen | Mauthausen |
| Maven | Apache Maven |
| Maverick | Maverick |
| Mawtini | Mawtini |
| Max Amann | Max Amann |
| Max Aub | Max Aub |
| Max Baer | Max Baer |
| Max Beckmann | Max Beckmann |
| Max Bill | Max Bill |
| Max Born | Max Born |
| Max Brod | Max Brod |
| Max Bruch | Max Bruch |
| Max Cavalera | Max Cavalera |
| Max Delbrück | Max Delbrück |
| Max Ernst | Max Ernst |
| Max Euwe | Max Euwe |
| Max Fiedler | Max Fiedler |
| Max frei | Max Frei |
| Max Frisch | Max Frisch |
| Max Goof | Max Goof |
| Max Horkheimer | Max Horkheimer |
| Max Jacob | Max Jacob |
| Max Linder | Max Linder |
| Max Mallowan | Max Mallowan |
| Max Mirnyi | Max Mirnyi |
| Max Mosley | Max Mosley |
| Max Pechstein | Max Pechstein |
| Max Perutz | Max Perutz |
| Max Planck | Max Planck |
| Max Reger | Max Reger |
| Max Roach | Max Roach |
| Max Roqueta | Max Roqueta |
| Max Rostal | Max Rostal |
| Max Scheler | Max Scheler |
| Max Schmeling | Max Schmeling |
| Max Schreck | Max Schreck |
| Max Stirner | Max Stirner |
| Max Theiler | Max Theiler |
| Max von Laue | Max von Laue |
| Max von Sydow | Max von Sydow |
| Max Weber | Max Weber |
| Max Wertheimer | Max Wertheimer |
| Max Wolf | Max Wolf |
| Max Wright | Max Wright |
| Max y Ruby | Max and Ruby |
| Max Zorn | Max August Zorn |
| Maxi Rodríguez | Maxi Rodríguez |
| Maxi single | Maxi single |
| Maxillopoda | Maxillopoda |
| Maxim Kontsevich | Maxim Kontsevich |
| Maxim Vengerov | Maxim Vengerov |
| maxima | principle |
| Maxime Weygand | Maxime Weygand |
| Maximiano | Maximian |
| Maximilian Mutzke | Maximilian Mutzke |
| Maximilian Sciandri | Max Sciandri |
