List of Famous people who are 31

Thibault Moulin is a French professional footballer who last played as a midfielder for Romanian club Academica Clinceni.

Rodney McLeod Jr. is an American football safety for the Philadelphia Eagles of the National Football League (NFL). McLeod played college football for the University of Virginia and signed with the St. Louis Rams as an undrafted free agent in 2012.

Kim Min-seok is a South Korean actor. He had supporting roles in television series such as Flower Band (2012), Descendants of the Sun, The Doctors (2016) and Innocent Defendant (2017).

Simon Porte Jacquemus is a French fashion designer and the founder of the Jacquemus fashion label.

Shōta Matsushima is a Japanese actor. He is currently under contract with Amuse, Inc.

Maki Ikaika Maleko Pitolo is an American mixed martial artist who competes in the Middleweight division of the Ultimate Fighting Championship. A professional mixed martial artist since 2013, Pitolo has also competed for Bellator MMA.

Eleanor Lucy V. "Ellie" Kendrick is an English actress best known for playing Anne Frank in the BBC's 2009 miniseries The Diary of Anne Frank, Ivy Morris in the first series of the 2010 revived Upstairs Downstairs, and Meera Reed in the HBO series Game of Thrones. She also voices Taelia Fordragon in World of Warcraft: Battle for Azeroth.

Adel Mechaal is a Morocco-born Spanish middle-distance runner. He competed in the 1500 metres event at the 2014 IAAF World Indoor Championships and in the Men's 1500m at the 2015 and 2017 IAAF World Championships.

Michael Martin Hefele is a German professional footballer who plays as a defender for English Championship club Nottingham Forest.

Arantxa Rus is a Dutch tennis player. In 2008, she won the Junior Australian Open defeating Jessica Moore from Australia. With this win she went from 35th to second place on the junior rankings, ultimately becoming the world No. 1 junior player.