List of King of the Cage champions

This is a list of King of the Cage (KOTC) champions at each weight class. KOTC is a USA-based mixed martial arts (MMA) organization that was founded in 1998.

The weight division system of KOTC is divided up in accordance with the Unified Rules of Mixed Martial Arts, but with some variations. KOTC has chosen to name its 145-pound division "Bantamweight" (instead of Featherweight), its 135-pound division "Flyweight" (instead of Bantamweight) and its 125-pound division "Light Flyweight" (instead of Flyweight). KOTC also takes advantage of the rarely used Super Heavyweight division for fighters exceeding the 265-pound weight limit of the Heavyweight division.

In addition to these variances, KOTC also employs three exclusive weight classes that were not specified within the Unified Rules of Mixed Martial Arts (until July 2017): a 165-pound "Light Welterweight" division, a 230-pound "Cruiserweight" division, and a 195-pound "Super Middleweight"' division. These divisions were later introduced (amongst others) into the Unified Rules of MMA, with "Light Welterweight" being called "Super Lightweight".

Super Heavyweight Championship

 * Over 265 lb
 * Prior to 2002 this weight class was referred to as Heavyweight.

Heavyweight Championship

 * 231 lb to 265 lb
 * In 2002 the Heavyweight and its title history were reclassified as Super Heavyweight and a new Heavyweight title was created with its current weight limit.

Cruiserweight Championship

 * 206 lb to 230 lb

Light Heavyweight Championship

 * 196 lb to 205 lb

Super Middleweight Championship

 * 186 lb to 195 lb

Middleweight Championship

 * 176 lb to 185 lb

Welterweight Championship

 * 166 lb to 175 lb
 * In 2008 KOTC revised this weight limit from 170 lb (77.1 kg) to its current limits.

Light Welterweight Championship

 * 156 lb to 165 lb

Lightweight Championship

 * 146 lb to 155 lb
 * This weightclass was originally referred to as Middleweight and had an upper weight limit of 160 lb

Bantamweight Championship

 * 136 lb to 145 lb
 * Prior to 2004 this weight class was referred to as Flyweight.

Flyweight Championship

 * 126 lb to 135 lb

Light Flyweight Championship

 * 116 lb to 125 lb

Women's Bantamweight Championship

 * 126 lb to 135 lb

Women's Flyweight Championship

 * 116 lb to 125 lb

Women's Strawweight Championship

 * 106 lb to 115 lb

Women's Atomweight Championship

 * Until 105 lb

Most consecutive title defenses
The following includes all KOTC champions who were able to consecutively defend their title three times or more. Fighters with the same number of title defenses are listed chronologically.

Most wins in title bouts
Fighters with four or more championship and/or interim championship title wins. Fighters with the same number of title wins are arranged in order of most title fights. Openweight and Superfight champions are not included.