| Maag, Simon | Liechtenstein U17 |  Liechtenstein | Defensa |
| Maah, Robert | CFR Cluj (ROU) |  Francia | Delantero |
| Maak, Matthias | Wiener Neustadt (AUT) / Austria U21 |  Austria | Defensa |
| Maalinn, Karoliine | Estonia WU19 |  Estonia | Delantero |
| Maanum, Hanna | Stabæk (NOR) |  Noruega | Centrocampista |
| Mabiala, Larrys | Karabükspor (TUR) |  República Democrática del Congo | Defensa |
| Macanović, Adil | Litija (SVN) |  Eslovenia | Defensa |
| Macarrão | Helvécia (ENG) |  Portugal | Delantero |
| Macedo, Keiron | Gibraltar FUT |  Gibraltar | Portero |
| Macedo Da Silva, Fernando | Osasuna (ESP) |  España | Centrocampista |
| Macek, Roman | Czech Republic U17 |  República Checa | Centrocampista |
| Maceri, Valentina | Verona (ITA) |  Italia | Centrocampista |
| Machairas, Dimitrios | Greece U21 |  Grecia | Centrocampista |
| Machaj, Mateusz | Lechia (POL) |  Polonia | Centrocampista |
| Machart, Julie | Juvisy (FRA) | Francia | Delantero |
| Macheda, Federico | Stuttgart (GER) | Italia | Delantero |
| Macho, Jürgen | Admira (AUT) | Austria | Portero |
| Machura, Pawel | Poland FUT | Polonia | Defensa |
| Maciaszczyk, Diana | Poland WU17 | Polonia | Centrocampista |
| Mačiulis, Nerijus | Kruoja (LTU) / Lithuania FUT |  Lituania | Centrocampista |
| Mackain, Scott | Santos (SCO) |  Escocia | Defensa |
| MacKay, David | St Johnstone (SCO) | Escocia | Defensa |
| Mackie, Jamie | QPR (ENG) / Scotland | Escocia | Delantero |
| Mackin, Aimee | Northern Ireland WU17 |  Irlanda del Norte | Delantero |
| Macklin, Gail | Glentoran (NIR) | Irlanda del Norte | Centrocampista |
| Macogonenco, Denis | Moldova U17 |  Moldavia | Portero |
| Macrițchii, Valerii | Moldova U17 | Moldavia | Centrocampista |
| Macrițchii, Andrei | Moldova U17 | Moldavia | Delantero |
| Mączkowski, Jakub | Poland FUT | Polonia | Delantero |
| Mączyński, Krzysztof | Górnik (POL) | Polonia | Centrocampista |
| Madatov, Mahir | Azerbaijan U17 |  Azerbaiyán | Delantero |
| Madej, Lukasz | Bełchatów (POL) | Polonia | Centrocampista |
| Mader, Florian | Austria Wien (AUT) | Austria | Centrocampista |
| Madera, Sebastian | Lechia (POL) | Polonia | Defensa |
| Madl, Michael | Sturm (AUT) | Austria | Defensa |
| Madlung, Alexander | Wolfsburg (GER) |  Alemania | Defensa |
| Madsen, Emma | Brøndby (DEN) |  Dinamarca | Delantero |
| Madsen, Pernille | Brøndby (DEN) / Denmark WU19 | Dinamarca | Centrocampista |
| Madsen, Johannes | Midtjylland (DEN) | Dinamarca | Delantero |
| Madsen, Marie Maj | Denmark WU17 | Dinamarca | Delantero |
| Madsen, Emil Rom | Faroe Islands U17 |  Islas Feroe | Portero |
| Maduro, Hedwiges | Sevilla (ESP) |  Holanda | Defensa |
| Maendly, Sandy | Torres (ITA) / Switzerland WOCO |  Suiza | Centrocampista |
| Mäenpää, Niki | VVV (NED) / Finland |  Finlandia | Portero |
| Mäeots, Siim | Estonia U19 | Estonia | Defensa |
| Maes, Kristof | Gent (BEL) |  Bélgica | Portero |
| Maestro, Nelly | Spain WU19 | España | Centrocampista |
| Maevski, Konstantin | MFK Dinamo (RUS) / Russia FUT |  Rusia | Defensa |
| Maffezzoni, Elena | Verona (ITA) | Italia | Defensa |
| Maftei, Vasile | CFR Cluj (ROU) |  Rumanía | Defensa |
