List of TNA Knockouts World Champions

The TNA Knockouts World Championship is a women's professional wrestling world championship owned by Total Nonstop Action Wrestling (TNA). It is primarily contested for in TNA's women's division, though it has been challenged one time by a male competitor (Cody Deaner). It was introduced on October 14, 2007, at TNA's Bound for Glory pay-per-view (PPV) event under the name "TNA Women's World Championship"; it was later renamed "TNA Women's Knockout Championship" in 2008. The word "Knockout" in the championship's name alludes to the term TNA Knockout, which TNA uses to refer to its female wrestlers.

Being a professional wrestling championship, it is won via a scripted ending to a match or awarded to a wrestler because of a storyline. All title changes have occurred at TNA-promoted events; reigns that occurred on TNA's primary television program, Impact!, usually aired on tape delay and as such are listed with the day the tapings occurred, rather than the air date. The inaugural champion was Gail Kim who defeated Ms. Brooks, Christy Hemme, Awesome Kong, Roxxi Laveaux, Velvet Sky, Shelly Martinez, Jackie Moore, ODB, and Angelina Love in a ten–Knockout gauntlet match. Taya Valkyrie's first reign is the longest in the title's history, with 377 days. Gail Kim's seventh reign holds the record for shortest reign in the title's history at 18 hours, due to her relinquishing the title because of her retirement. Overall, there have been 64 reigns shared among 26 wrestlers, with four vacancies.

Combined reigns
As of July 29, 2024.