List of Famous people who are 31

Cristina Ouviña Modrego is a Spanish basketball player. She plays for Valencia Basket and the Spain women's national basketball team. She is point guard and winner of the EuroBasket in France 2013. She is known for her speed, her desire to learn, and her work ethic.

Leopoldo Morín Garza, better known as Polo Morín, is a Mexican actor and model.

Baptiste Reynet is a French professional footballer who plays as a goalkeeper for Ligue 1 club Nîmes Olympique.

Randy Dionisius Pangalila also known as Randy Pangalila is an Indonesian actor.

Pour Lui is a Japanese singer known for her work as the founder and leader of the "alternative idol" group Bis. Pour Lui started her career in November 2009 as a solo singer, being promoted as a "new age rock icon". She released her debut album, The World Is Pour Lui's in 2010. She announced that she would be indefinitely suspending her solo career, and would be forming an idol group, which would eventually become Bis. She was one of only two original members remaining by the time Bis disbanded in July 2014. She was often seen as the "face" of the group, and was often supportive of the sometimes drastic and extreme measures that were used to gain the group publicity. This led to tensions between the members, most notably Yufu Terashima and Rina Yokoyama. Pour Lui formed the rock band Lui Frontic Akabane Japan in December 2013, with former members of The Storefront and Bis sound producer Kenta Matsukuma. Once Bis disbanded, she focused her activities with the band until there disbandment in 2017. Two years after Bis' disbandment, Pour Lui relaunched the group with new members and remained a member until early 2018. Later that year she became a member of Billie Idle and remained a member until their disbandment at the end of 2019. She released her second album, The World Is Pour Lui's II, in 2020, and launched the new idol group Piggs.

Anna van der Breggen is a Dutch professional road bicycle racer, who currently rides for UCI Women's WorldTeam SD Worx. She won the gold medal in the women's road race at the 2016 Summer Olympics in Rio de Janeiro, and has won the Giro d'Italia Femminile on three occasions. In 2018, and 2020, she won the women's road race at the UCI Road World Championships.

Diego Armando Valentin Contento is a German professional footballer who plays as a left-back for SV Sandhausen.

Patricio Julián Rodríguez, sometimes referred as Pato Rodríguez [ˈpato-] or Patito Rodríguez [paˈtito], is an Argentine professional footballer who plays for Wilstermann in the Bolivian First Division.

Stefan Mitrović is a Serbian professional footballer who plays as a centre-back for Ligue 1 club Strasbourg. At international level, he has represented the Serbia national team.

Philipp Hansa is an Austrian radio presenter and actor.