Football referees

Jovan Kachevski

Jovan Kaludjerovic

Jovan Kaluđerović

Jochem Kamphuis

Jesse Kananen

Jacob Karlsen

Jasmine Kaur

Jake Keating

Jakob Kehlet

José Antonio Kellys Marquez

Joel Kennedy

J. Kerten

Jevgenijs Keziks

Jener Khorava

Jong-Hyeok Kim

Jung-Soo Kim

Jung-Hee Kim

Jae-Hong Kim

Joong-Dong Kim

Jens Klemm

Joey Kooij

Jianxun Kou

Joonas Kovapohja

John Kraak

Johan Krantz

Josef Krejsa

Jovan Krsmanovic

Jonas Krzyzanowski

Joshua Kuipers

Johann Kuldmäe

Jelena Kumer

Jani Laaksonen

Jean-Baptiste Lambert

Jose Landa

Jackson Landy

Jose Lara

Juan Lara

Jonathan Lardot

Jake Larson

Justina Lavrenovaitė-Perez

José Lax Franco

Ji-Hyung Lee

Jacob Lehane

Jorge Leira

Jonathan Leitón

Jack Leslie

Johannes Liedtke

Jason Lieser

Jung-Soo Lim

James Linington