The Spirit of Ganbare World Openweight Championship (Japanese: スピリット・オブ・ガンバレ世界無差別級王座, Hepburn: Supiritto obu Ganbare Sekai Musabetsu-kyū Ōza) is a professional wrestling championship promoted by the Ganbare☆Pro-Wrestling (GanPro) promotion. The title is the first to be created specifically for GanPro.^[1] The current champion is Keisuke Ishii, who is in his first reign.

Ganbare☆Pro-Wrestling was created in 2013 by Ken Ohka as a brand of DDT Pro-Wrestling. The brand was created to capture the spirit of small independent promotions in Japan and, to do so, regularly brought in wrestlers from outside the promotion. On March 18, 2017, Ohka beat Shiori Asahi at a Kaientai Dojo event to win the Independent World Junior Heavyweight Championship.^[2][3] The title stayed with the promotion where it served as its main singles title until January 2021 when it moved to Professional Wrestling Just Tap Out (JTO).^[2] Now without a singles title to promote, in September 2021, GanPro – now part of the CyberFight umbrella promotion – revived the Ganbare☆Climax tournament and created the Spirit of Ganbare World Openweight Championship as a prize for the winner of the tournament.^[4] On November 23, Tatsuhito Takaiwa went on to defeat Yumehito Imanari in the final and won the inaugural title.^[5]

On April 1, 2024, GanPro officially split from CyberFight and became an independent promotion.^[6]

As of May 11, 2024, there have been a total of seven reigns shared among seven different wrestlers. The current champion is Keisuke Ishii who is in his first reign.

• Professional wrestling in Japan