List of Famous people who are 21

Eric dos Santos Rodrigues, known as Eric Ramires or Ramires, is a Brazilian professional footballer who plays as a midfielder for Red Bull Bragantino, on loan from Bahia.

Florian Grengbo is a French track cyclist.

Faouzia Ouihya, known mononymously as Faouzia, is a Moroccan-Canadian singer-songwriter and musician. As of December 2020, her Spotify profile has 3.24 million monthly listeners.

Donavan Grondin is a French racing cyclist, who currently rides for UCI ProTeam Arkéa–Samsic.

Dmitry Alekseyevich Loginov is a Russian snowboarder. He is a three-time world champion and a sevenfold junior world champion.

Charles Nathan Abi is a French professional footballer who plays as a forward for Ligue 2 club Guingamp on loan from Saint-Étienne.

Bruna Alves de Carvalho is a Brazilian actress, the daughter of Angelica Celina Fernandes and Sérgio Carvalho. Following early appearances in commercials, her first major role was as Lara FIel in the soap opera Amor e Revolution in 2011. She gained further prominence in 2012 playing Nina in the telenovela Carousel.

Kang Chan-hee, also known by his stage name Chani, is a South Korean singer and actor. He began his career as a child actor, in the television dramas Listen to My Heart (2011), The Innocent Man (2012), The Queen's Classroom (2013), interactive drama Click Your Heart (2016), crime drama Signal (2016), and high-rated drama Sky Castle (2018). In 2015, he was a part of pre-debut team Neoz School under FNC Entertainment as a member of the first group called NEOZ. He debuted in October 2016 with the group name SF9 and the single "Fanfare".

Yousef bin Ahmad Al-Othaimeen is a Saudi Arabian politician who is the secretary-general of the Organisation of Islamic Cooperation (OIC), since November 2016, when Iyad bin Amin Madani stepped down for health reasons.