List of Famous people who are 21

Nada Zeidan is a Palestinian spokesmodel who happens to be a road racer by day,And a mild-mannered emergency-room nurse by night.

Ellie Madison Carpenter is an Australian footballer who plays as a defender for French club Olympique Lyonnais and the Australia national team. She previously played for Western Sydney Wanderers in Australia's W-League and Portland Thorns FC in the United States' National Women's Soccer League (NWSL).

Hal T. Hickel is a visual effects animator for Industrial Light & Magic.

Christopher Denham is an American character actor, film director, writer, and producer.

Donald Graham Burt is a film production designer. He has worked on multiple films including The Joy Luck Club, Dangerous Minds, and Donnie Brasco, as well as with David Fincher on Zodiac in 2007. In 2008, he designed the sets for The Curious Case of Benjamin Button which won an Academy Award for Best Art Direction in 2009, an Art Directors Guild Award for Best Achievement in Art Direction, and a BAFTA Film Award for Best Production Design, along with a nomination for a Satellite Award for Best Art Direction & Production Design.

Sibi Malayil is an Indian film director who works in Malayalam cinema.

Mario Rizzetto is an Italian virologist who in 1977 first reported the Hepatitis D virus as a nuclear antigen in patients infected with HBV who had severe liver disease.