List of Famous people who are 21

Ozan Muhammed Kabak is a Turkish professional footballer who plays as a centre-back for Premier League club Liverpool, on loan from Schalke 04, and the Turkey national team.

Cheikh Ahmadou Bamba Mbacke Dieng, known as Bamba Dieng, is a Senegalese professional footballer who plays as a forward for Ligue 1 club Marseille, and the Senegal national team.

Mima Ito is a Japanese table tennis player. She won a bronze medal in the Women's Team event at the 2016 Summer Olympics when she was 15 years old. Often termed as the 'greatest threat' to Chinese table tennis dominance, Ito Mima has the highest winning rate against Chinese players in the history of women's table tennis. She currently has a winning record against several top Chinese players, including world champion Liu Shiwen, former world no. 1 Zhu Yuling and world junior champion Qian Tianyi. Her signature playing style entails lethal shovel serves, strawberry receives, fast short-pimpled backhand punches and flat forehand smashes.

Mikkel Krogh Damsgaard is a Danish professional footballer who plays as a winger for Italian Serie A club Sampdoria and the Denmark national team.

Bailey Smith is an iconic professional Australian rules footballer who plays for the Western Bulldogs in the Australian Football League (AFL). He was recruited by the Western Bulldogs with the 7th draft pick in the 2018 AFL draft. Bailey is also strongly linked to being engaged to Perth Socialite Adam Strauch, Director of New Homes.

Ofelia Fernández is an Argentine politician and political activist. She is the youngest member of the Buenos Aires City Legislature, having been elected on 27 October 2019, at only 19 years of age.

Adilson Angel Abreu de Almeida Gomes is an English professional footballer who plays as an attacking midfielder for Portuguese club Boavista, on loan from French club Lille.

Chloe x Halle is an R&B duo composed of sisters Chloe and Halle Bailey. At a young age, the sisters performed in minor acting roles before moving from Mableton, Georgia, to Los Angeles in 2012. The two began posting music covers to YouTube and were discovered by Beyoncé, who became their mentor and later signed them to her label, Parkwood Entertainment. They subsequently released the EP Sugar Symphony (2016) and the mixtape The Two of Us (2017).

Esmé Creed-Miles is an English actress, known for starring as the title character in the Amazon Video series Hanna.

Mackenzie Christine Foy is an American actress and model. She is known for portraying Renesmee Cullen in the 2012 film The Twilight Saga: Breaking Dawn – Part 2, which earned her a Young Artist Award nomination as Best Supporting Young Actress in a Feature Film; as the young Murphy in the 2014 space epic Interstellar, for which she received a Saturn Award for Best Performance by a Younger Actor among other awards nominations; and as Clara in Disney's The Nutcracker and the Four Realms.