List of Famous people who are 21

Khaled El Sayed is a Lebanese actor and voice actor.

Yasmin Ahmed Almubarak Altwaijri is a Senior Scientist and the Head of Epidemiology Research at King Faisal Specialist Hospital and Research Centre (KFSH&RC) in Riyadh, Saudi Arabia. As the Head of Epidemiology Research, she studies the causes and effects of diseases and illnesses within a specific country, in her case Saudi Arabia. She studies the prevalence of conditions such as obesity and mental illness in Saudi society, and is active in advocating for social and political changes to promote better health.

Mohammed Al-Kunaydiri, is a Saudi Arabian professional footballer who plays as a left back for Al-Hilal.

Mohammed Fahad Al-Harthi, is a Saudi writer, journalist and media expert, with more than 20 years of experience in the field of traditional and new media.

Daniel Streich is a Swiss military instructor, community council member and a former member of Swiss People's Party. A Protestant who converted to Catholicism and then to Islam, Streich left the Swiss People's Party over the campaign for the national ban on the construction of new minarets.

Raymond Lakah,, is a French-Egyptian magnate, and former owner of the French newspaper France Soir.