List of current ONE fighters

The fighters in this section have either signed with the ONE, have recently returned from an announced retirement, or have yet to make their ONE debut, or have get a contract from ONE Lumpinee (ONE Friday Fights) event. == Current champions, weight classes and status ==

The ONE currently uses ten different weight classes and four sports combat. This list of champions is updated as of December 6, 2025, after ONE Fight Night 38. ==Suspended fighters==

The list below is based on fighters suspended either by World Anti-Doping Agency (WADA) for violation of taking prohibited substances or non-analytical incidents, (2) by local commissions on misconduct during the fights or at event venues, or (3) by ONE. ==Mixed martial arts==

Heavyweight (265 lb, 120.2 kg) Light Heavyweight (225 lb, 102.1 kg) Middleweight (205 lb, 93 kg) Welterweight (185 lb, 83.9 kg) Lightweight (170 lb, 77.1 kg) Featherweight (155 lb, 70.3 kg) Bantamweight (145 lb, 65.8 kg) Flyweight (135 lb, 61.2 kg) Strawweight (125 lb, 56.7 kg) Women's Atomweight (115 lb, 52.2 kg) Unless otherwise cited, all records are retrieved from tapology.com . == Kickboxing & Muay Thai ==

Heavyweight (265 lb, 120.2 kg) Light Heavyweight (225 lb, 102.1 kg) Lightweight (170 lb, 77.1 kg) Featherweight (155 lb, 70.3 kg) Bantamweight (145 lb, 65.8 kg) Flyweight (135 lb, 61.2 kg) Strawweight (125 lb, 56.7 kg) Atomweight (115 lb, 52.2 kg) Women's Strawweight (125 lb, 56.7 kg) Women's Atomweight (115 lb, 52.2 kg) ==Submission grappling==

Middleweight (205 lb, 93 kg) Welterweight (185 lb, 83.9 kg) Lightweight (170 lb, 77.1 kg) Featherweight (155 lb, 70.3 kg) Women's Bantamweight (145 lb, 65.8 kg) Flyweight (135 lb, 61.2 kg) ==See also==