List of Famous people who are 21

Chamoy Thipayaso was an employee of the Petroleum Authority of Thailand. She is known for receiving the world's longest prison sentence of lifetime imprisonment 141,078 years for her involvement in a pyramid scheme that defrauded more than 16,000 Thais and is estimated to have been worth between $200–300 million.

Ian Joseph Brzezinski is an American foreign policy and military affairs expert.

Brendan O'Neill is a British columnist. He is the editor of Spiked and has been a columnist for The Australian and The Big Issue.

Jamie Anne Allman is an American actress. She is known for her role as Terry Marek on AMC's The Killing.

Hunter Dickinson is an American college basketball player for the Michigan Wolverines of the Big Ten Conference. He was named a consensus second-team All-American as a freshman in 2021.

Motomu Toriyama is a Japanese game director and scenario writer who has been working for Square Enix since 1994. He initially worked on cutscenes in Bahamut Lagoon and Final Fantasy VII before serving as one of the 3 directors on Final Fantasy X under Yoshinori Kitase where he was incharge of events.

Pauletta Foppa is a French female handball player for Brest Bretagne Handball and the French national team.

Carlos Joel Castro de Sousa is a Portuguese footballer who plays as a goalkeeper for ARC Oleiros on loan from Tondela.

Takumi Yamamoto is a professional Japanese baseball player. He plays pitcher for the Chunichi Dragons.

Asahi Ito is a Japanese actor who is represented by Ken-On.