Football referees
Maurizio Londino
Michael Lonnoy
Mijail Lopez
Maximiliano Lopez
Mauricio Eleazar López Sánchez
M. Lotz
Michael Love
Manfredas Lukjančukas
Martin Lundby
Marcus Lundgren
Mathias Lykke
Marc Lynch
Myroslav Lypko
Mohamed Maarouf
Msimeleli Mabuto
Michael MacDermid
Matthew Cain MacDermid
Maximiliano Macheroni
Mahmood Ali Mahmood Ismail
Marvin Maier
Marino Majstrović
Mehrez Malki
Michael Mammis
Merveil Melvin Mandekouzou-Vendafara
Maximiliano Manduca
Mahmoud Mansour
Matteo Marcenaro
Matteo Marchetti
Manuel Marchetti
Myriam Marcotte
Maurizio Mariani
Mario Maric
Mihai Marius Marica
Marjan Markoski
Momčilo Marković
Maria Marotta
Mart Martin
Mauricio Martín
Miguel Martínez Munuera
Marco Antonio Martins
Michelangelo Martins de Almeida Junior
Menashe Masiah
Mateusz Mastaj
Marek Mastiš
Melvin Orlando Matamoros Ponce
Melvin Daniel Matamoros
Milan Matejcek
Miroslav Matić
Marko Matoc
Martin Matoša