| Fighter | Record | Last Bout |
|---|---|---|
| Alexia Thainara | 15-1-0 | 2026-08-08 |
| Alexis Davis | 21-11-0 | 2022-02-05 |
| Alexis Dufresne | 6-3-0 | 2015-01-03 |
| Alfonso Alcarez | 1-3-1 | 1999-09-24 |
| Ali AlQaisi | 8-5-0 | 2020-10-10 |
| Ali Bagautinov | 15-6-0 | 2016-11-19 |
| Aliaskhab Khizriev | 14-0-0 (1 NC) | 2024-02-03 |
| Alibi Idiris | 11-1-0 (1 NC) | 2026-02-21 |
| Alice Ardelean | 12-7-0 | 2026-05-16 |
| Alice Pereira | 7-1-0 | 2026-04-04 |
| Alistair Overeem | 47-19-0 (1 NC) | 2021-02-06 |
| Aljamain Sterling | 26-5-0 | 2026-04-25 |
| Allan Goes | 10-5-2 | 1998-05-15 |
| Allan Nascimento | 22-7-0 | 2026-06-20 |
| Allan Zuniga | 13-1-0 | 2018-07-06 |
| Allen Berube | 4-3-0 | 2007-06-23 |
| Allen Crowder | 10-4-0 (1 NC) | 2019-06-22 |
| Allen Frye Jr. | 6-1-0 | 2025-12-13 |
| Alonzo Menifield | 18-6-1 | 2026-09-19 |
| Alptekin Ozkilic | 9-5-0 | 2015-05-09 |
| Alvaro Herrera Mendoza | 9-6-0 | 2018-07-28 |
| Alvin Hines | 7-2-0 | 2026-07-18 |
| Alvin Robinson | 15-9-0 | 2008-11-15 |
| Amanda Cooper | 3-5-0 | 2018-11-10 |
| Amanda Lemos | 15-7-1 | 2026-08-08 |
| Amanda Nunes | 23-5-0 | 2023-06-10 |
| Amanda Ribas | 13-7-0 | 2025-07-26 |
| Amar Suloev | 24-7-0 | 2002-05-10 |
| Amaury Bitetti | 5-2-0 | 2000-06-09 |
| Amilcar Alves | 15-12-0 | 2011-01-22 |
| Amir Albazi | 17-3-0 | 2026-02-07 |
| Amir Sadollah | 6-5-0 | 2014-09-20 |
| Anderson Dos Santos | 21-9-0 | 2021-08-07 |
| Anderson Silva | 34-11-0 (1 NC) | 2020-10-31 |
| Andre Ewell | 17-9-0 | 2021-12-18 |
| Andre Fialho | 16-8-0 (1 NC) | 2023-09-23 |
| Andre Fili | 25-14-0 (1 NC) | 2026-06-20 |
| Andre Gusmao | 6-3-0 | 2009-05-23 |
| Andre Lima | 12-1-0 | 2026-08-29 |
| Andre Muniz | 24-8-0 | 2025-10-04 |
| Andre Pederneiras | 1-1-2 | 1999-07-16 |
| Andre Petroski | 13-6-0 | 2026-05-16 |
| Andre Roberts | 14-2-1 | 1999-07-16 |
| Andre Soukhamthath | 13-8-0 | 2019-08-31 |
| Andre Winner | 21-11-2 | 2011-07-02 |
| Andrea Lee | 13-11-0 | 2025-03-01 |
| Andreas Gustafsson | 12-3-0 | 2025-09-06 |
| Andreas Michailidis | 13-6-0 | 2022-06-04 |
| Andreas Stahl | 10-4-0 | 2015-12-10 |
| Andrei Arlovski | 34-24-0 (2 NC) | 2024-06-29 |