Bella Károlyi is a renowned Romanian-American gymnastics coach, best known for his contributions to the sport. Born on September 13, 1942, in Romania, he initially trained as a gymnast before transitioning to coaching. Károlyi gained international fame for his work with elite gymnasts, including the legendary Nadia Comăneci, who won multiple gold medals at the 1976 Summer Olympics. In the United States, Károlyi became a prominent figure in gymnastics, coaching the U.S. women's national team. He played a crucial role in the success of gymnasts like Mary Lou Retton and the 1996 U.S. Olympic team, which won gold in Atlanta. His coaching style emphasized discipline and hard work, leaving a lasting impact on the sport.