List of Famous people who are 31

Khaled Al-Barakah is a Saudi professional footballer who plays as a left back for Al-Najma.

Kim Yoo-rim is a South Korean speed skater. She competed at the 2006 Winter Olympics in Torino, women's speed skating 500 m and 100 m. She finished in 20th position at the 500 m, 28th at the 1000 m. She competed in the 1000 m at the 2010 Winter Olympics in Vancouver, but she did not finish the race.

Hesham Mohamed is an Egyptian professional footballer. He plays as a midfielder for Egyptian Premier League club Al Ittihad Alexandria, as well as the Egypt U20 and U23 national team.

Saaya Osako , better known as Yui Minami , is a Japanese gravure idol and former child actress who is represented by the talent agency JMO.

Sergey Vitaliyevich Chernetskiy is a Russian cyclist, who currently rides for UCI ProTeam Gazprom–RusVelo. In August 2019, he was named in the startlist for the 2019 Vuelta a España.

Geoffrey Cheah is a Hong Kong competitive swimmer.

Polina Rahimova is an Uzbekistani-born Azerbaijani indoor volleyball player that plays for Brazilian club SESI/Vôlei Bauru and Azerbaijan women's national volleyball team.