This is a list of Shooto world champions at each weight class. Shooto is a Japan-based mixed martial arts (MMA) promoting and sanctioning organization founded first in 1985 as a particular fighting system, and then in 1989 as an MMA promotion. Shooto used to promote different weight classes than the Association of Boxing Commissions, which are used by most MMA promotions. On January 1, 2015, weight limits were changed to the divisions established by the Nevada State Athletic Commission. Then, on January 1, 2017, the names of the weight classes were also changed to the names established by NSAC.

Current champions

Men's championships

Middleweight Championship

Weight limit of 83.9 kg (185 lb) The weight limit was 83 kg (183 lb) prior to January 1, 2015. The Middleweight Championship was known as the Light Heavyweight Championship prior to January 1, 2017.

Welterweight Championship

Weight limit of 77.1 kg (170 lb) The weight limit was 77 kg (169.8 lb) prior to January 1, 2015. The Welterweight Championship was known as the Middleweight Championship prior to January 1, 2017.

Lightweight Championship

Weight limit of 70.3 kg (155 lb) The weight limit was 70 kg (154.3 lb) prior to January 1, 2015. The Lightweight Championship was known as the Welterweight Championship prior to January 1, 2017.

Featherweight Championship

Weight limit of 65.8 kg (145 lb) The weight limit was 65 kg (143.3 lb) prior to January 1, 2015. The Featherweight Championship was known as the Lightweight Championship prior to January 1, 2017.

Bantamweight Championship

Weight limit of 61.2 kg (135 lb) The weight limit was 60 kg (132.3 lb) prior to January 1, 2015. The Bantamweight Championship was known as the Featherweight Championship prior to January 1, 2017.

Flyweight Championship

Weight limit of 56.7 kg (125 lb) The weight limit was 56 kg (123.5 lb) prior to January 1, 2015. The Flyweight Championship was known as the Bantamweight Championship prior to January 1, 2017.

Strawweight Championship

Weight limit of 52.2 kg (115 lb) The weight limit was 52 kg (114.6 lb) prior to January 1, 2015. The Strawweight Championship was known as the Flyweight Championship prior to January 1, 2017.

Women's championship history

Women's Strawweight Championship

Weight limit of 52.2 kg (115 lb)

Women's Super Atomweight Championship

Weight limit of 50 kg (110 lb)

Women's Atomweight Championship

Weight limit of 47.6 kg (105 lb)

Defunct title

Heavyweight Championship

Weight limit of 120.2 kg (265 lb) The weight limit was 100 kg (220.5 lb) prior to January 1, 2015.

Records

Most wins in title bouts

The following includes all fighters with four or more championship and/or interim championship title wins.

Most consecutive title defenses

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

Multi-division champions

Fighters who have won championships in multiple weight classes. Tournament champions are not included.

By nationality

The following include championship title holders by nationality.