List of Famous people born on March 21st

Branislav Simić is a retired Greco-Roman wrestler from Serbia. He competed at the 1956, 1964 and 1968 Olympics in the middleweight category (−87 kg), and won a gold medal in 1964 and a bronze in 1968.

Aries Susanti Rahayu is a sport climbing athlete from Indonesia. She is mainly active in speed climbing competitions. She has been nicknamed "Spiderwoman". She was the women's world record holder in speed climbing, which she achieved by clocking a time of 6.995 seconds at the 2019 IFSC Xiamen World Cup. Also, this made her the first woman to climb a speed wall in less than seven seconds.

Derek Johnstone Townsley is an English former professional footballer. His clubs included Gretna, Queen of the South, Motherwell, Hibernian and Oxford United. Townsley was normally a midfielder, although he was a versatile player and also played in attack and defence.

Brooke Miller is an American former professional road racing cyclist and U.S. national team member. In 2008, she won both the women's criterium and road race national championships.