MLW World Heavyweight Championship

On June 15, 2002, Major League Wrestling held an eight-man single-elimination tournament to crown the first MLW Champion at its inaugural Genesis event.^[3] Jerry Lynn, Shane Douglas, Vampiro and Taiyo Kea advanced to the semifinals.^[3] Douglas defeated Lynn to advance to the finals, and caused the match between Vampiro and Kea to be declared a no contest. As a result, both wrestlers advanced to the finals for a three-way dance.^[3] Douglas defeated both Kea and Vampiro to become the first champion.^[3] Afterwards, Douglas threw the belt down, like he did with the NWA World Heavyweight Championship belt.^[4][5] Referee John Finnegan threatened that Douglas would be banned from wrestling in Philadelphia if he didn't defend the title.^[6] MLW went on hiatus for three months after the match.

Upon the company's return, Satoshi Kojima defeated Jerry Lynn in New York City, New York at MLW's Reload event on September 26 for the vacant MLW World Heavyweight Championship.^[7][8] MLW promoter Court Bauer would later confirm that this title lineage and belt design was a separate championship from the MLW Championship won by Shane Douglas in June 2002.^[9] As such, Kojima was recognized as the first MLW World Heavyweight Champion. Kojima defended the title in his home promotion All Japan Pro Wrestling (AJPW), with the defenses airing on both MLW Underground TV and AJPW broadcasts in Japan.^[7][8] Kojima lost the title at Hybrid Hell on June 20, 2003 to Mike Awesome. Afterwards, Awesome lost the title to Steve Corino, as Corino exercised Awesome's promise for a title shot.^[6] It was later reported that Kojima's employers, AJPW would not allow him to drop the title to an employee of a rival company Pro Wrestling Zero-One, which was Steve Corino.^[10] Corino remained champion until the promotion closed on February 10, 2004.^[2]

MLW resumed wrestling operations in July 2017. In January 2018, MLW announced its Road to the World Championship, an eight-man single-elimination tournament to crown a new champion.^[11] During the tournament, A. C. H. replaced Tom Lawlor in the semi-finals, after he suffered an injury.^[12][13] On April 12, Shane Strickland defeated Matt Riddle in The World Championship Finals.^{[14][15][16][17]} Low Ki made the first international title defense since 2003 in Claremont, Australia, as he defeated Jonah Rock on November 30 in a New Horizon Pro Wrestling event.^[18] Starting in July 2019, MLW would begin playing a Championship Lineage video (similar to New Japan Pro-Wrestling) highlighting all previous MLW World Heavyweight Champions before sanctioned championship matches.^[19] This lineage package would once again confirm Shane Douglas' reign as not recognized as part of the MLW World Heavyweight Championship history.

As of February 5, 2024, there have been fourteen reigns and one vacancy shared between thirteen different champions. Shane Douglas was the inaugural champion, defeating Taiyo Kea and Vampiro at Genesis on June 15, 2002, to become the inaugural champion. Jacob Fatu's reign is the longest at 819 days, while Mike Awesome's reign is the shortest at 10 minutes. Satoshi Kojima is the oldest champion when he won it at 53 years old, while Shane Strickland is the youngest champion at 28 years old.

Killer Kross is the current champion in his first reign. He won the title by last eliminating in the Battle Riot match at Battle Riot VIII on January 29, 2026 in Kissimmee, Florida.

As of March 16, 2026.