United World Wrestling (UWW) is the international governing body for the sport of amateur wrestling; its duties include overseeing wrestling at the World Championships and Olympics. It presides over international competitions for various forms of wrestling, including Greco-Roman, Freestyle, Grappling, and others. The flagship event of UWW is the World Wrestling Championships.

Amateur wrestling is a variant of wrestling practiced at Olympic, collegiate, scholastic, or other amateur level competitions. There are two international wrestling styles performed at the Olympic Games: freestyle and Greco-Roman. Both styles are under the supervision of the United World Wrestling (UWW).