List of Famous people who are 31

Makoto Hiejima is a Japanese professional basketball player for Link Tochigi Brex of the Japanese B.League.

Taishi Nakagawa is a professional Japanese baseball player. He plays infielder for the Yokohama DeNA BayStars. Between 2009 and 2017 he played for the Tohoku Rakuten Golden Eagles.

Eddy Ben Arous is a French rugby union player who plays prop for Top 14 side Racing 92.

Silvan Dillier is a Swiss cyclist, who currently rides for UCI ProTeam Alpecin–Fenix.

Fang Wu is a Taiwanese female singer-songwriter under Linfair Records, had participated in Super Idol and Duets China. She was once the member of the duo, BabyFace and Double 2 Band.

Handi Morgan Winata or better known as Morgan Oey is an Indonesian actor, model and singer of mixed Dayak and Chinese descent. He was a member of the pop group SM*SH from 2010 to 2013.

Hazar Motan is a Turkish actress.

Roman Josi is a Swiss professional ice hockey defenceman and captain of the Nashville Predators of the National Hockey League (NHL). Drafted 38th overall by the Predators in the 2008 NHL Entry Draft, Josi is regarded as one of the most complete defencemen in NHL history. In 2019–20, Josi became the first Swiss player to win the James Norris Memorial Trophy as the league's best defenceman; also the first player in Predators' franchise history. In 2021 he surpassed Mark Streit as the most productive Swiss NHL player.

Bernardo Vieira de Souza, better known as Bernardo, is a Brazilian professional footballer who plays as an attacking midfielder and is currently a free agent.

Michael Calfan is a French DJ and house music producer from Paris.