List of Famous people who are 21

Thiago Seyboth Wild is a Brazilian tennis player. He won 2018 US Open junior singles title. He reached a career high ATP singles ranking of No. 106 on September 14, 2020 and a career high ITF junior ranking of No. 8 on January 22, 2018. He also has a career high ATP doubles ranking of 393 achieved on February 10, 2020.

Laurent Bateau is a French actor. He has appeared in more than eighty films since 1992.

Kōta Ishibashi is a professional Japanese baseball player. He plays catcher for the Chunichi Dragons.

Loïc Badé is a French professional footballer who plays as a defender for Ligue 1 club Stade Rennais.

Julen Agirrezabala Astúlez is a Spanish professional footballer who plays for Athletic Bilbao as a goalkeeper.

Madina Nalwanga is a Ugandan actress famous for her lead role as Phiona in Disney's Queen of Katwe. The film depicts the life of Phiona Mutesi, a Ugandan girl living in a slum in Katwe who learns to play chess and becomes a Woman Candidate Master. This role earned her the Most Promising Actor award at 2017 Africa Movie Academy Awards in Lagos, Nigeria. She also won an NAACP Image Award, a Women Film Critics Circle Award, and was nominated for a Critic's Choice Award.

Selwa Al-Hazzaa is a Saudi ophthalmologist and head of the ophthalmology department at King Faisal Specialist Hospital. She served as the personal ophthalmologist for the late King Fahd bin Abdulaziz Al Saud. She is one of the first Saudi women to achieve international success academically and professionally. On January 11, 2013, per a Royal Decree from King Abdullah, Al-Hazzaa became one of the first ever female members of the Saudi Arabia Shoura Council.

Fernando "Fer" Niño Rodríguez is a Spanish professional footballer who plays as a forward for RCD Mallorca, on loan from Villarreal CF.

Christian Frederick Bayoi Makoun Reyes is a Venezuelan footballer who plays as a midfielder and defender for Inter Miami in MLS.

Grigori Denisenko is a Russian professional ice hockey winger currently playing for the Syracuse Crunch of the American Hockey League (AHL) as a prospect to the Florida Panthers of the National Hockey League (NHL). He was selected in the first round, 15th overall, by the Florida Panthers in the 2018 NHL Entry Draft.