世界泰拳联合会（International Federation of Muaythai Amateur，IFMA）是一个成立于1993年，专门管辖国际泰拳事务的组织。目前，该组有128个成员国加盟，旗下的主要比赛为东南亚运动会和亚洲室内与武道运动会的泰拳赛事以及世界锦标赛。它的总部设在泰国曼谷。
The International Federation of Muaythai Associations, or IFMA, called the International Federation of Muaythai Amateur until 27 July 2019, is a sport governing body of amateur and professional Muay Thai and Muay boran consisting of 140 member countries worldwide with 5 continental federations after unification of International Federation of Muaythai Amateur and World Muaythai Council. IFMA is officially recognised by the International Olympic Committee (IOC), the Global Association of International Sports Federations (GAISF),[2] the Association of IOC Recognised International Sports Federations (ARISF), the Olympic Council of Asia (OCA),[3] World Anti-Doping Agency (WADA)[4] International World Games Association (IWGA),[5] and Trim and Fitness International Sport for All Association (TAFISA).[6] Muaythai has been included in many official sport programs such as the World Games, World Combat Games, Arafura Games, TAFISA Games, SEA Games, Asian Indoor and Martial Arts Games, Asian Beach Games,[7] Demonstration Sport in the Asian Games.