List of Famous people who are 21

Coline Devillard is a French artistic gymnast. Devillard is the 2017 European Champion and 2019 European silver medalist on vault. She was the first French female gymnast to win the European title on vault. She was part of the French team that won silver at the 2018 European Championships which was France's best European team finish ever.

Larisa Roxana Giurgiu, known professionally as Roxen, is a Romanian singer signed to Global Records. She rose to prominence upon being featured on Romanian producer Sickotoy's "You Don't Love Me" (2019), which reached number three in Romania and received radio airplay in several other countries. Her following singles, "Ce-ți cântă dragostea" and "Spune-mi", eventually peaked atop the national chart.

Zhansaya Abdumalik is a Kazakhstani chess player holding the titles of International Master (IM) and Woman Grandmaster (WGM). A chess prodigy, she twice won the World Youth Chess Championships in her age and gender category. She holds three Grandmaster (GM) norms, and only needs to achieve a rating of 2500 to qualify for the GM title.