Kamarudeen Usman is a Nigerian-American professional mixed martial artist, former freestyle wrestler and graduated folkstyle wrestler. He currently competes in the Middleweight division in the Ultimate Fighting Championship (UFC), where he is the former UFC Welterweight Champion. Usman is also The Ultimate Fighter 21 tournament winner.
As of November 14, 2022, he is #1 in the UFC men's welterweight rankings, and as of November 21, 2023, he is #14 in the UFC men's pound-for-pound rankings.
As a freestyle wrestler, Usman primarily competed at 84 kilograms (185 lb), and was a 2010 U.S. University World Team Member. Collegiately, he competed at 174 pounds (79 kg), and was the 2010 NCAA Division II national champion, a three–time NCAA Division II All-American, and a NAIA national qualifier.