-
1
- Danny Abbadi
- 4-6-0
-
2
- Hamdy Abdelwahab
- "The Hammer"
- 3-0-0, 1 NC
-
3
- Shamil Abdurakhimov
- "Abrek"
- 20-8-0
-
4
- Daichi Abe
- 13-7-0
-
5
- Papy Abedi
- "Makambo"
- 10-4-0
-
6
- Klidson Abreu
- "White Bear"
- 16-5-0, 2 NC
-
7
- Ricardo Abreu
- "Demente"
- 5-1-0
-
8
- Juan Adams
- "The Kraken"
- 10-6-0
-
9
- Scott Adams
- 8-1-0
-
10
- Zarrukh Adashev
- "The Lion"
- 4-4-0
-
11
- Sam Adkins
- "The Experience" | 7-20-2
-
12
- Nick Agallar
- 24-6-0
-
13
- Mariya Agapova
- "Demonslayer" | 10-4-0
-
14
- Marcelo Aguiar
- 2-3-1
-
15
- Jessica Aguilar
- "Jag" | 20-10-0
-
16
- Kevin Aguilar
- "The Angel of Death" | 17-5-0
-
17
- Christian Aguilera
- "The Beast" | 14-8-0
-
18
- Nick Aguirre
- "Slick" | 7-2-0
-
19
- Yoshihiro Akiyama
- "Sexyama" | 16-7-0, 2 NC
-
20
- Rostem Akman
- "Kurdimus Prime" | 7-4-0
-
21
- Alatengheili
- "The Mongolian Knight" | 17-9-2
-
22
- Amir Albazi
- "The Prince" | 17-1-0
-
23
- John Albert
- "Prince" | 3-5-0
-
24
- Júnior Albini
- "Baby" | 16-6-0
-
25
- Wes Albritton
- 0-1-0
-
26
- Aleksandra Albu
- "Stitch" | 3-2-0
-
27
- Ildemar Alcântara
- "Marajó" | 26-18-0
-
28
- Alfonso Alcarez
- "Alfie" | 1-3-1
-
29
- Gilbert Aldana
- "El Peligro" | 6-2-0
-
30
- Hector Aldana
- "El Charro" | 5-3-0
-
31
- Irina Alekseeva
- "Russian Ronda" | 5-2-0
-
32
- Talita Alencar
- "Problem Child" | 5-0-1
-
33
- Jim Alers
- "The Beast" | 14-5-0, 1 NC
-
34
- John Alessio
- "The Natural" | 35-17-0, 2 NC
-
35
- Houston Alexander
- "The Assassin" | 17-16-1, 2 NC
-
36
- Lucas Alexander
- "The Lion" | 8-4-0
-
37
- Marcio Alexandre Jr.
- "Lyoto" | 17-5-0
-
38
- Bill Algeo
- "Señor Perfecto" | 18-8-0
-
39
- Royce Alger
- "The Farmer" | 3-2-0
-
40
- Abdul Razak Alhassan
- "Judo Thunder" | 12-6-0
-
41
- Razak Al-Hassan
- "Razor" | 13-5-0
-
42
- Nurullo Aliev
- "Tajik Eagle" | 9-0-0
-
43
- Sultan Aliev
- 15-3-0
-
44
- Ikram Aliskerov
- 15-1-0
-
45
- John Allan
- "The Hunter" | 16-9-0, 1 NC
-
46
- Arnold Allen
- "Almighty" | 19-3-0
-
47
- Benny Alloway
- "Blanco" | 19-9-0
-
48
- Asu Almabaev
- "Zulfikar" | 19-2-0
-
49
- Ericka Almeida
- 8-3-0
-
50
- Jailton Almeida
- "Malhadinho" | 21-3-0
-
51
- Lucas Almeida
- 14-3-0
-
52
- Ricardo Almeida
- "Cachorrão" | 13-5-0
-
53
- Thomas Almeida
- "Thominhas" | 22-5-0
-
54
- Sarah Alpar
- "Too Sweet" | 9-6-0
-
55
- Ali AlQaisi
- "The Royal Fighter" | 15-8-0
-
56
- Victor Altamirano
- "El Magnifico" | 12-4-0
-
57
- Mostapha Al Turk
- 6-6-0
-
58
- Eddie Alvarez
- "The Underground King" | 30-8-0, 2 NC
-
59
- Joel Alvarez
- "El Fenomeno" | 20-3-0
-
60
- Sean Alvarez
- "The Poker Brat" | 4-3-0
-
61
- Amilcar Alves
- 18-23-0
-
62
- Rafael Alves
- "The Turn" | 21-12-0
-
63
- Adlan Amagov
- "Borz" | 14-2-1
-
64
- Rayanne Amanda
- 14-8-0
-
65
- Alen Amedovski
- 8-4-0
-
66
- Jaqueline Amorim
- "Jacque" | 8-1-0
-
67
- Matt Andersen
- 14-8-1
-
68
- Andy Anderson
- "The Hammer" | 0-1-0
-
69
- Lowell Anderson
- 0-1-0
-
70
- Megan Anderson
- 10-5-0