List of Famous people who are 21

Owen Campbell is an Australian blues singer-songwriter and guitarist. He was a finalist in the sixth series of the TV show Australia's Got Talent.

Jaden McDaniels is an American basketball player for the Minnesota Timberwolves of the National Basketball Association (NBA). He played college basketball for the Washington Huskies. He attended Federal Way High School in Federal Way, Washington, where he was named a McDonald's All-American and Washington Gatorade Player of the Year as a senior. McDaniels was a five-star recruit and one of the top players in the 2019 class.

Sivaangi Krishnakumar is an Indian playback singer and actress. In 2019, she contested in a singing competition Super Singer 7 which was aired on Star Vijay. Later that year, she participated in a comedy cooking show, Cooku With Comali. She is currently acting in a Tamil film, Don as a supporting actress alongside actor Sivakarthikeyan.

Kartik Tyagi is an Indian cricketer. He made his first-class debut for Uttar Pradesh in the 2017–18 Ranji Trophy on 6 October 2017, a month before he turned 17.

Devin Anthony Vassell is an American professional basketball player for the San Antonio Spurs of the National Basketball Association (NBA). He played college basketball for the Florida State Seminoles.

Julen Lobete Cienfuegos is a Spanish professional footballer who plays as a left winger for Real Sociedad B.

Fatima bint Mubarak Al Ketbi is the third wife of Sheikh Zayed bin Sultan Al Nahyan, the founder and inaugural president of United Arab Emirates, and emir (ruler) of Abu Dhabi. She is referred to as the Mother of sheikhs and as the Mother of the UAE.

Anthony Chisholm was an American actor.

Fátima Ptacek is an American film and television actress and model, and a human rights activist working with UN Women's #HeForShe campaign for gender equality. She is best known as the lead actor in the 2012 Academy Award winning film Curfew and its 2014 full-length feature film version Before I Disappear. She has lent her voice as the lead role of "Dora" in Nickelodeon's animated television series Dora the Explorer since 2010 and Dora and Friends: Into the City! since 2014.

Runa Imai is a Japanese swimmer. She qualified for the 2016 Summer Olympics in Rio de Janeiro in the 200 meter individual medley. She swam the 11th best time in the heats and qualified for the semifinals, where she was eliminated with a 15th-place finish.