Béla Károlyi (September 13, 1942 – November 15, 2024) was a Romanian and American gymnastics coach of Hungarian descent. Early in his coaching career he developed the Romanian centralized training system for gymnastics. One of his earliest protégés was Nadia Comăneci, the first Olympic Games gymnast to be awarded a perfect score. Living under the dictatorship of Nicolae Ceaușescu, Károlyi frequently clashed with Romanian officials. He and his wife defected to the United States in 1981.