- Maicon (Retired)
- Maksim Paskotši
- Malcom
- Malick Thiaw
- Malo Gusto
- Malo Gusto
- Mamadou Sakho
- Manolo Gabbiadini
- Mantas Bickauskas
- Manuel Akanji
- Manuel Lazzari
- Manuel Locatelli
- Manuel Neuer
- Manuel Ugarte
- Marc Albrighton
- Marc Bartra
- Marc Cucurella
- Marc Guéhi
- Marc Roca
- Marc-André ter Stegen
- Marcão
- Marcão (Teixeira)
- Marcel Fraga (Retired)
- Marcel Halstenberg
- Marcel Sabitzer
- Marcelo
- Marcelo Amores (Retired)
- Marcelo Brozović
- Marco Asensio
- Marco Baixinho
- Marco Carnesecchi
- Marco Reus
- Marco Verratti
- Marcos Acuña
- Marcos Alonso (Retired)
- Marcos Guardiola
- Marcos Leonardo
- Marcos Llorente
- Marcos Rojo
- Marcus Edwards
- Marcus Forss
- Marcus Rashford
- Marcus Thuram
- Marek Hamšík (Retired)
- Mario Balotelli
- Mário Fernandes
- Mario Gila
- Mario Götze
- Mario Hermoso
- Mario Lemina
- Mario Mandžukić (Retired)
- Mario Pašalić
- Mário Rui
- Marius Wolf
- Mark Flekken
- Mark Noble (Retired)
- Marko Arnautović
- Marko Grujić
- Marko Livaja
- Marko Stamenić
- Marlos
- Marouane Fellaini
- Marquinhos
- Marshall Munetsi
- Märt Smirnov (Retired)
- Marten de Roon
- Martin Dúbravka
- Martin Ødegaard
- Martin Terrier
- Martín Zubimendi
- Marvelous Nakamba
- Mason Greenwood (Retired)
- Mason Mount
- Mateo Kovačić
- Mateo Retegui
- Mateu Morey
- Mateus Uribe
- Mateusz Klich
- Mateusz Lewandowski
- Matheus
- Matheus Cunha
- Matheus Nunes
- Matheus Reis
- Mathew Ryan
- Mathias Jensen
- Mathías Olivera
- Mathys Tel
- Matías Vecino
- Matías Viña
- Mats Hummels
- Mats Wieffer
- Matt Doherty
- Matt Miazga
- Matt Ritchie
- Matt Turner
- Matteo Darmian
- Matteo Guendouzi
- Matteo Pessina
- Matteo Politano
- Matteo Ruggeri
- Matthew Jackson
- Matthew Targett
- Matthias Ginter
- Matthijs de Ligt
- Mattia De Sciglio
- Mattia Viti
- Mattia Zaccagni
- Matty Cash
- Matty Longstaff
- Mauro Icardi
- Max Aarons
- Max de Jager
- Max Lowe
- Maxence Lacroix
- Maxi Rodríguez
- Maxime Gonalons
- Maximilian Arnold
- Maximiliano Gómez
- Maxwel Cornet
- Medhi Benatia (Retired)
- Mehdi Taremi
- Memphis Depay
- Merih Demiral
- Merlin Röhl
- Mert Müldür
- Mesut Özil
- Michael Bala
- Michael Bradley
- Michael Olise
- Michael Olunga
- Michail Antonio
- Mickaël Salamone
- Micky van de Ven
- Miguel Almirón
- Miguel Gutiérrez
- Mike Maignan
- Mikel Merino
- Mikel Oyarzabal
- Mikel Vesga
- Mikeldi Serrano (Retired)
- Mikkel Damsgaard
- Milan Djurić (Retired)
- Milan Škriniar
- Miles Robinson
- Miralem Pjanić
- Miska Ylitolva
- Mitch Guitar
- Mitchell Dijks
- Mohamed Daramy
- Mohamed Elneny
- Mohamed Mhaimid
- Mohamed Salah
- Mohamed Simakan
- Mohammed Kudus
- Mohammed Nairube
- Mohammed Salisu
- Moi Elyounoussi
- Moise Kean
- Moisés Caicedo
- Morgan Schneiderlin
- Morten Hjulmand
- Mouctar Diakhaby
- Mousa Dembélé
- Moussa Dembélé
- Moussa Diaby
- Moussa Sissoko
- Moussa Wagué
- Mustapha Castle
- Mykhailo Mudryk
- Myron Boadu
