Football referees
Alejandro Lucena Perdomo
Aleksandar Lukić
Artem Lyubimov
Aleš Mach
Andy Madley
Andrew Madley
Adalid Maganda Villalva
Ali Magrouda
Al Hadi Mahamat
Ammar Ebrahim Hasan Mahfoodh
Anyelo Maija
Angelo Maita
Amaury Majors
Adham Mohammad Tumah Makhadmeh
Akona Zenith Makhalima
Aleksi Makkonen
Antti Malaska
Abdoulaye Manet
Anto Marić
Alessandro Marinelli
Alejandro Mariscal
Abigail Marnot
Andre Marriner
Abigail Marriott
Alan Enrique Martínez Vega
Andrés Martínez
Alexis Martínez
A. Martínez Martínez
Alan Martinez-Loyola
Anton Marus
Abraham Mashala
Aleksandr Mashlyakevich
Antonio Miguel Mateu Lahoz
Alastair Mather
Alexander Mathieson
Aleksandar Matković
Andrés Matonte
Aleksey Matyunin
Aleksandr Mayun
Alex McInch
Akram Mechairia
Ajdin Medic
Ajit Meetei
Abdou Abdel Mefire
Amilcar Meija
Andrew Meimarakis
Alexander Meinhardt
Andreas Meintanas
Alessandro Meleleo
Augin Melki