List of Famous people who are 21

Kamlesh Lachham Nagarkoti is an Indian cricketer. He made his List A debut for Rajasthan in the 2016–17 Vijay Hazare Trophy on 26 February 2017. Two days later, he took the first-ever hat-trick for Rajasthan in List A cricket, in the Vijay Hazare Trophy match against Gujarat.

Beate Heinemann is a German particle physicist who has held positions at universities in Europe and the USA. She currently holds a joint appointment at two German institutions, Albert Ludwigs University of Freiburg and the DESY laboratory in Hamburg.

Onyeka Okongwu is an American basketball player for the Atlanta Hawks of the National Basketball Association (NBA). He played college basketball for the USC Trojans.

Kyle Anthony Pitts is an American football tight end for the Atlanta Falcons of the National Football League (NFL). He played college football at Florida, where he was named a unanimous All-American and won the John Mackey Award as the most outstanding tight end in college football in 2020. He was selected fourth overall by the Atlanta Falcons in the 2021 NFL Draft, making him the highest drafted tight end in NFL history.

Cas Anvar is a Canadian actor and writer.

Illan Stéphane Meslier is a French professional footballer who plays as a goalkeeper for Premier League club Leeds United and the France U21's international side.

Guillaume Schiffman is a French cinematographer who is known for the films he has made with director Michel Hazanavicius, including OSS 117: Cairo, Nest of Spies in 2006 and OSS 117: Lost in Rio in 2009. Schiffman is particularly known for his work on The Artist with Hazanavicius. Schiffman shot The Artist in color and then monochromed it into black-and-white in the lab.

Marcelino Ignacio Nuñez Espinoza is a Chilean professional footballer who plays as a midfielder for Chilean club Universidad Católica.

Sofiane Diop is a French professional footballer who plays as a midfielder for AS Monaco FC.

Tomoki Richard Hiwatashi is an American figure skater. He is the 2018 CS Inge Solar Memorial – Alpen Trophy bronze medalist and a two-time U.S. national medalist.