List of Famous people who are 21

Gabrielle Tana is a British film producer. Tana and her fellow producers were nominated for an Academy Award for Best Picture for the 2013 film Philomena.

Joel Bialys Michaels is a film producer and actor. His notable work includes The Changeling for which he won a Best Motion Picture and a Golden Reel Award.

Poul B. Jensen is a Danish astronomer and a discoverer of 98 minor planets while working at Brorfelde Observatory. Between 1967 and 1969 he assisted in positional observations with the observatory's 7" transit circle. He is also a co-discoverer of the Comet Jensen-Shoemaker (1987g1). As of 2004, he is still publishing in the Minor Planet Circulars.

Afnan Al-Shuaiby is a Saudi national who is the former Secretary General and Chief Executive of the Arab British Chamber of Commerce (ABCC) in London, England. She has held various positions in Saudi Arabia in education, and foreign companies in the USA. She sits on the boards of many organizations.

Susan Montford is a Scottish filmmaker living in Los Angeles. She has produced, written and directed movies that range from cult hits to blockbusters.