List of Famous people who are 21

Sâmia Raquel Passos Lima is a Brazilian badminton player. As a junior player, she won the U-17 2016 Pan Am Junior Badminton Championships in the girls' and mixed doubles event. She won her first senior international title at the Brazil International Challenge tournament partnered with Jaqueline Lima. She was a bronze medalist in the women's doubles event at the 2019 Lima Pan American Games.

Christian Wagner is an American film editor who has edited films such as Face/Off (1997) and Mission: Impossible 2 (2000). He is also best known collaborating numerous times with film director Tony Scott, from the films True Romance (1993) to Domino (2005).

Baek Ha-na is a South Korean badminton player who attended Cheongsong Girls' High School. She started playing badminton in 2009 after being recommended by her brother, and was selected to join the national team in 2017. She was a gold medalist in the girls' doubles event at the 2017 Asian Junior Championships and the World Junior Championships with Lee Yu-rim. Their first major result in a senior event came when she and Lee reached the final at the 2017 Macau Open, but lost to Chinese pair Huang Yaqiong and Yu Xiaohan with the score 10–21, 17–21.

Tereza Švábíková is a Czech badminton player from B.O.CHANCE OSTRAVA.

Ikhsan Leonardo Imanuel Rumbay is an Indonesian badminton player, who also plays for the PB Djarum club in national events. He also attended Special Sports School Ragunan.