List of Famous people who are 31

Pedro Filipe Teodósio Mendes is a Portuguese professional footballer who plays for Ligue 1 club Montpellier HSC as a central defender.

Soap&Skin is the experimental musical project of Austrian artist Anja Plaschg.

Jonathan David Bellion is an American singer, rapper, songwriter, and record producer. He was born and raised in Lake Grove, New York on Long Island. He is best known for his song "All Time Low," along with his many big writing and producing credits. Bellion has released four mixtapes and two studio albums. His first, The Human Condition, was released on June 10, 2016, and it debuted at number five on the US Billboard 200. He released his second studio album, Glory Sound Prep, on November 9, 2018.

Jonathan Schmid is a French professional footballer who plays for SC Freiburg as a midfielder or right back.

Ayten Amer is an Egyptian actress.

Yūki Ōtsu is a Japanese professional footballer who plays for Japanese J1 League club Yokohama F. Marinos as an attacking midfielder.

Chen Kuan-yu, born October 29, 1990 in New Taipei City, Taiwan, is a Taiwanese professional baseball pitcher who is currently a free agent. He has played in Nippon Professional Baseball (NPB) for the Yokohama BayStars/Yokohama DeNA BayStars and Chiba Lotte Marines.

Masashi Ebinuma is a Japanese judoka.

Levi Keith Johnston is an American model and actor, best known as the twice-former fiancé of Bristol Palin and father of their son Tripp. He first received media attention in August 2008 when U.S. vice presidential candidate Sarah Palin announced that her daughter Bristol was five months pregnant by Johnston and that the two were engaged. The couple ultimately ended their relationship, and Johnston and the Palin family engaged in several public feuds.

Artem Aleksandrovich Volvich is a Russian volleyball player, a member of Russia men's national volleyball team and Russian club VC Zenit-Kazan.