List of Famous people who are 21

Shunsuke Izumiya is a Japanese track and field athlete specialising in the high hurdles. He won a bronze medal at the 2018 World U20 Championships. He later also won a bronze medal at the 2019 Summer Universiade.

Serhiy Anatolyovych Hayduk is a Ukrainian Vice Admiral and a former commander of the Ukrainian Navy.

Giorgi Tsitaishvili is a professional Ukrainian football midfielder who plays for FC Dynamo Kyiv.

Mohamed Al-Mady was the Vice Chairman and Chief Executive Officer of Saudi Basic Industries Corporation (SABIC).

Neil Norman Burger is an American film and television director, writer, and producer. He is known for the fake-documentary Interview with the Assassin (2002), the period drama The Illusionist (2006), Limitless (2011), and the sci-fi action film Divergent (2014), based on the dystopian novel of the same name by Veronica Roth.

Musaid Al Aiban is a Saudi Arabian Minister of State and member of the Council of Ministers of Saudi Arabia. He serves in both the Saudi Council of Political and Security Affairs (CPSA), and the Council of Economic and Development Affairs (CEDA). He is a graduate of Harvard University in the United States. He was appointed as the new Chairman of National Cybersecurity Authority on 31 October 2017 by King Salman bin Abdul Aziz Al Saud. National security adviser since 2018.

Jean Emile Junior Onana Onana is a Cameroonian professional footballer who plays as a midfielder for Ligue 1 club Bordeaux.

Triston Casas is an American professional baseball first baseman in the Boston Red Sox organization. Listed at 6 feet 4 inches (1.93 m) and 238 pounds (108 kg), Casas bats left-handed and throws right-handed.

Jordan Joseph is a French rugby union player. His position is in the back row and he currently plays for Racing 92 in the Top 14.

Sayaka Mikami is a Japanese diver. She competed in the women's 3 metre springboard event at the 2019 World Aquatics Championships. She qualified to represent Japan at the 2020 Summer Olympics.