The Global Association of Mixed Martial Arts (GAMMA) is the international federation for amateur mixed martial arts, bringing together member federations across the world. Founded in 2018, it has grown from 24 founding nations to a community of more than 92 member nations. Based in Lausanne, Switzerland, GAMMA works to develop and regulate the sport while giving amateur athletes an international platform to demonstrate their skills.

GAMMA organizes world and continental championships, major games, seminars, and official gatherings, and shares competition news, results, and event coverage through its media channels, including GAMMA TV. Its resources support federations, athletes, and officials with information on membership, athlete registration, weight categories, competition pathways, rules, and the field of play. The organization also provides governance and integrity information, including anti-doping resources.

GAMMA promotes mixed martial arts through values of respect, discipline, humility, excellence, and integrity. Its mission is to deliver high-quality events, encourage global development, and uphold martial arts traditions. The federation also welcomes sponsorship and advertising partnerships connected to its events and media.