Football referees
Markus Huber
Marta Huerta de Aza
Mischa Huru Kellerhals
Mohamed Hussein
Mahmoud Hussein Ali
Marcelo Ibáñez Juárez
Mohamed Ibrahim
Masaaki Iemoto Toma
Milan Ilić
Massimiliano Irrati
Marat Iskakov
Marko Ivković
Matthew Jackson
Mindaugas Jackus
Muhammad Taqi Aljaafari bin Jahari
Mladen Jakovljević
Maudo Jallow
Muhammad Usaid Jamal
Mark James
M. Jamet
Mackenzie Janes
Mehmetjan Jansen
Manuel Jauk
Mohamed Javiz
Mateusz Jenda
Michael V. Jensen
Martin Ježík
Mehmet Jiang
Michael Johansen
Matthias Jöllenbeck
Mike Jones
Marta San Juan Casado
M. Jug
Moegamat Naasif Julius
Mika Jungclaus
Mikko Juusola
Maksim Kachalyk
Muhammad Kaleia
Mete Kalkavan
Murat Kasap
Mirza Kazic
Mustapha Kechaf
Mahamadou Kéïta
Mareks Ķere
Mustafa Gökhan Keskin
Moses Mbhabeleli Kheswa
Martijn Kieft
Manuchar Kikoria
Michael Killick
Min-Cheol Kim