Takenori Ito - (Shooto) Yuji Ito - (Shooto) Blagoy Ivanov - (Sengoku, Bellator, WSOF) Hiroshi Izumi - (Sengoku, DREAM) J Yves Jabouin - (WEC, UFC) Damon Jackson - (UFC, Bellator, KOTC, Legacy) Jeremy Jackson - (KOTC, UFC) Kevin Jackson - (UFC) Quinton "Rampage" Jackson - (KOTC, PRIDE, UFC, WFA, Bellator) Dustin Jacoby - (UFC, WSOF, Titan FC, Bellator) Ryan Janes - (UFC) Keith Jardine - (KOTC, MFC, Pancrase, UFC, Strikeforce) Antoine Jaoude - (K-1, IFL) Dave Jansen - (Bellator, WEC, M-1) Bubba Jenkins - (TPF, Bellator, ACB) Trent Jenkins - (RINGS, UFC) Steve Jennum - (UFC) Ryan Jensen - (UFC, Strikeforce, Bellator) Maciej Jewtuszko - (UFC, WEC, KSW) Ronald Jhun - (Shooto, Strikeforce, UFC, WFA, KOTC) Art Jimmerson - (UFC) Ryan Jimmo - (MFC, UFC) Brett Johns - (CWFC, Titan FC, UFC) Anthony Johnson - (UFC, WSOF, Titan FC) DaMarques Johnson - (UFC, KOTC) Demetrious Johnson - (OneFC, UFC, WEC, KOTC) Jordan Johnson - (UFC, RFA) Lavar Johnson - (Bellator, UFC, WEC, Strikeforce, PFC) Michael Johnson - (UFC, Titan FC) Timothy Johnson - (UFC, Bellator) Wesley Johnson - (Cage Rage) Brian Johnston - (UFC, Strikeforce) Jon "Bones" Jones - (UFC) Marcus Jones - (UFC) Nathan Jones - (PRIDE) Paul Jones - (UFC, Shooto) Kevin Jordan - (UFC, Strikeforce) Shawn Jordan - (UFC, Strikeforce, Bellator, WEC) Ivan Jorge - (UFC, Jungle Fight, M-1, Shooto) Scott Jorgensen - (UFC, WEC, ShoXC) Krzysztof Jotko - (UFC) Alan Jouban - (UFC, TPF, RFA) Charles Jourdain - (UFC) Jesse Juarez - (Bellator, Strikeforce, MFC) Luke Jumeau - (UFC) Bu Kyung Jung - (DREAM, DEEP) Chan Sung Jung - (UFC, WEC, Sengoku, DEEP, Pancrase) Myles Jury - (Shooto, KOTC, UFC) K Hideki Kadowaki - (Shooto, Sengoku, DEEP) Martin Kampmann - (UFC, WFA, KOTC, CWFC) Masanori Kanehara - (K-1, K-1 Hero's, Shooto, Pancrase, Sengoku, DEEP, UFC) Denis Kang - (PRIDE, Pancrase, K-1, M-1, UFC, DREAM) Hiroyuki Kanno - (Shooto) Kyung Ho Kang - (UFC, DEEP, Sengoku) Manel Kape - (RIZIN, UFC) Georgi Karakhanyan - (WSOF, DREAM, Bellator, BAMMA, KOTC, TPF) Alex Karalexis - (WEC, UFC) Joop Kasteel - (RINGS) Calvin Kattar - (UFC, EliteXC) Tetsuji Kato - (Shooto, VTJ, DEEP, Strikeforce) Yukio Kawabe - (PRIDE, Pancrase) Kenji Kawaguchi - (Shooto) Yusuke Kawaguchi - (M-1, DEEP, DREAM, KSW) Tatsuya Kawajiri - (PRIDE, Shooto, Strikeforce, DREAM, UFC) Ryo Kawamura - (Pancrase, Sengoku, OneFC) Chris Kelades - (Bellator, UFC) Daniel Kelly - (UFC) Paul Kelly - (UFC, SFL, CWFC) Tim