Football referees
Aleksi Keronen
Adam Kersey
Ahmed Mohamed Khalil Saad
Abbas Khan
Artem Kharin
A. Kherradji
Andriy Kholyavko
Abdurashid Khudoyberganov
Alan Kijas
A. King
Alex King
Alexander King
Andrew Kitchen
Aviv Klein
Aleksandr Klemenov
Artem Klyuev
A. Koçak
Andi Koçi
Andre Kolissala Mbangui
Aleksandr Kolochinskiy
Aleksey Koltunov
Aleksandr Kopat
Adem Korkmaz
Andriy Koshura
Amine Kourgheli
Aristomenis Koutsiaftis
Andriy Kovalenko
Alekseiy Kovalev
Ajay Krishnan
Artyom Kuchin
Anton Kuchma
Aleksey Kulbakov
Ashwin Kumar
Aleksandr Kurbatov
Amin Kurgkheli
Aleksey Kuznetsov
Aapo Kyllönen
Adam Ladebäck
Ajitkumar Meitei Lairenlakpam
Aleksey Lapatukhin
Alexander Lappi
Anton Lashuk
Aleksei Latõnin
Ali Lemghaifry
Anthony Letellier
Aleksander Liber
Adissa Abdul Raphiou Ligali
Allard Lindhout
Alex David Livesey
Alessandro Lo Cicero