Football referees

Igor Vertkov

Ivan Vučemilović-Šimunović

Ivan Vučković

Ivan Vukančić

Igor Zakharov

Ivelin Zanev

Ioannis Zisis

Ivan Župan

Ibai Rezola Etxeberría

Ignacio Iglesias Villanueva

Igor Junior Benevenuto

Iñaki Bikandi Garrido

Issa Mouhamed

Iulian Calin

Iván González González

Iván Muñoz Pérez

Jakob A. Sundberg

Jaafar Aafouallah

Jesse Aalto

Juma Abdu-Razzaq

Jheison David Abril Ricaurte

Jana Adamkova

James Adcock

Joel Antonio Aguilar Chicas

Joel Aguilar

John Edward Aguilar Agudelo

Jhonatan Aguirre Pérez

Jae-Hoon Ahn

Juma Mohammed Al Burshaid

Joel Alarcón

Juan Pablo Alba Serna

Javier Alberola Rojas

Jordy Alemán

J. Aleman Peralta

Jake Allsopp

Jorge António Alves Fernandes

Juan Carlos Andrade Arreaga

Jorge Joaquín Antequera Castedo

Jonathan Antero Silva

Jan Peter Aravirta

José Argote Vega

Jhon Alexander Arias Beltrán

Jervis Atagana

Joseph Attard

Julien Aube

Joel Bäckström

Jimy Baclet

José Luis Báez Félix

John Eiver Balanta Barbosa

Johan Balder