"Abrek"

Shamil Abdurakhimov

Heavyweight

20-4-0 (W-L-D)

"White Bear"

Klidson Abreu

Light Heavyweight

15-3-0 (W-L-D)

"The Kraken"

Juan Adams

Heavyweight

5-2-0 (W-L-D)

"The Last Stylebender"

Israel Adesanya

Middleweight

18-0-0 (W-L-D)

"Jag"

Jessica Aguilar

Women's Strawweight

20-8-0 (W-L-D)

"Angel of Death"

Kevin Aguilar

Featherweight

17-2-0 (W-L-D)

"Wolverine"

Omari Akhmedov

Middleweight

19-4-1 (W-L-D)

"The Mongolian Knight"

Heili Alateng

Bantamweight

13-7-1 (W-L-D)

"Baby"

Junior Albini

Heavyweight

14-5-0 (W-L-D)

"Marajo"

Iuri Alcantara

Bantamweight

35-10-0 (W-L-D)

Irene Aldana

Women's Bantamweight

11-5-0 (W-L-D)