| Fighter | Record | Last Bout |
|---|---|---|
| Paul Taylor | 11-6-1 (1 NC) | 2011-02-05 |
| Paul Varelans | 9-9-0 | 1996-12-07 |
| Paulo Costa | 16-4-0 | 2026-04-11 |
| Paulo Santos | 0-3-0 | 1998-10-16 |
| Paulo Thiago | 18-9-0 | 2014-09-13 |
| Pavel Andrusca | 9-0-0 | 2026-09-05 |
| Pawel Pawlak | 12-3-0 | 2015-07-18 |
| Payton Talbott | 11-1-0 | 2026-10-03 |
| Pearl Gonzalez | 6-3-0 | 2017-10-07 |
| Pedro Falcao | 16-5-0 | 2025-04-05 |
| Pedro Munhoz | 20-10-0 (2 NC) | 2024-11-02 |
| Pedro Nobre | 18-4-2 (1 NC) | 2013-01-19 |
| Pedro Rizzo | 20-11-0 | 2003-11-21 |
| Peggy Morgan | 4-4-0 | 2013-11-30 |
| Per Eklund | 14-5-1 | 2009-02-21 |
| Pete Rodriguez | 5-2-0 | 2024-02-03 |
| Pete Sell | 10-7-0 | 2009-03-07 |
| Pete Spratt | 25-23-0 | 2007-06-12 |
| Pete Williams | 12-6-0 | 2002-03-22 |
| Peter Barrett | 11-5-0 | 2020-12-12 |
| Peter Sobotta | 17-7-1 | 2020-07-25 |
| Petr Yan | 20-5-0 | 2026-10-24 |
| Phil Baroni | 15-18-0 | 2011-01-01 |
| Phil Davis | 17-4-0 (1 NC) | 2015-01-24 |
| Phil Harris | 22-12-0 (2 NC) | 2014-07-19 |
| Phil Hawes | 12-6-0 | 2024-01-13 |
| Phil Johns | 30-14-1 | 2001-02-23 |
| Phil Rowe | 11-7-0 | 2026-02-21 |
| Philip De Fries | 12-6-0 (1 NC) | 2013-04-06 |
| Philipe Lins | 18-5-0 | 2024-03-09 |
| Phillip Miller | 16-0-0 | 2002-11-22 |
| Phillipe Nover | 11-8-1 | 2017-02-11 |
| Piera Rodriguez | 12-2-0 | 2026-03-14 |
| Pingyuan Liu | 13-7-0 | 2019-12-21 |
| Piotr Hallmann | 18-6-0 | 2015-11-07 |
| Poliana Botelho | 8-5-0 | 2022-06-04 |
| Polyana Viana | 13-9-0 | 2026-05-16 |
| Preston Parsons | 11-6-0 | 2025-01-11 |
| Priscila Cachoeira | 13-9-0 | 2026-06-06 |
| Puja Tomar | 9-6-0 | 2025-03-22 |
| Punahele Soriano | 13-5-0 | 2026-09-05 |
| Ramona Pascual | 6-5-0 | 2022-11-05 |
| Raphael Pessoa | 10-2-0 | 2020-07-25 |
| Raquel Pennington | 16-10-0 | 2024-10-05 |
| Raulian Paiva | 21-5-0 | 2022-06-25 |
| Remco Pardoel | 9-6-1 (2 NC) | 1995-09-08 |
| Robert Peralta | 18-8-0 (1 NC) | 2015-04-04 |
| Rodolfo Rubio Perez | 10-16-1 | 2014-11-08 |
| Roland Payne | 0-1-0 | 1994-09-09 |
| Ross Pearson | 20-16-0 (1 NC) | 2019-03-30 |