List of Famous people who are 21

Munetaka Murakami is a Japanese professional baseball player for the Tokyo Yakult Swallows of Nippon Professional Baseball (NPB).

Joshua T. Bassett is an American actor and singer. He is known for his starring role as Ricky Bowen in High School Musical: The Musical: The Series.

Ester Expósito is a Spanish actress and model.. She gained recognition playing the starring role of Carla Rosón Caleruega in the Spanish drama series Elite, broadcast on Netflix.

Stanley Praimnath is a survivor of the September 11 attacks on the World Trade Center. He worked as an executive for Fuji Bank on the 81st floor of the South Tower, the second tower struck that day. He was one of only 18 survivors from the plane's impact zone.

Hykeem Jamaal Carter Jr., professionally known as Baby Keem, is an American rapper, songwriter, and record producer. He is best known for his single "Orange Soda" from his second mixtape Die for My Bitch (2019), which peaked at number 98 on the Billboard Hot 100. Baby Keem was included on XXL's 2020 Freshman Class.

Jonathan Tyler Daniels is an American football quarterback for the Georgia Bulldogs. Daniels began his career at USC in 2018 before transferring to Georgia in 2020.

Penei Sewell is an American football offensive tackle for the Detroit Lions of the National Football League (NFL). Born in American Samoa, he moved to the American state of Utah in 2012 prior to attending the University of Oregon. As a sophomore there in 2019, he was named a unanimous All-American and was awarded the Outland and Morris trophies. He opted out of his junior season in 2020 due to the COVID-19 pandemic and subsequently declared for the 2021 NFL Draft, where he was drafted seventh overall by the Lions.

David Miles Hogg is an American gun control activist and student who survived the Stoneman Douglas High School shooting in 2018. He is a founding member of Never Again MSD, an advocacy group led by Marjory Stoneman Douglas High School (MSD) students. He has helped lead several high-profile protests, marches, and boycotts, including the boycott of The Ingraham Angle. He has also been a target and scapegoat of several conspiracy theories and right-wing accusations.

Mark Killeen is a British film and television actor.

Noah Arinzechukwu Okafor is a Swiss professional footballer who plays as midfielder for Austrian Bundesliga club Red Bull Salzburg and the Switzerland national team.