List of Famous people who are 31

Yao Lei is a China-born Singaporean former badminton player. She won the women's doubles silver and mixed doubles bronze at the 2010 Delhi Commonwealth Games. She also represented Singapore in the 2012 Summer Olympics in London with Shinta Mulia Sari. Her parents Yao Yiping and Gu Xiaojing were both international badminton players. In 2003, as a 13-year-old she emigrated to Singapore under the Foreign Sports Talent Scheme.

Angelo Tulik is a French former professional cyclist, who rode professionally between 2012 and 2019, entirely for Team Europcar and its later iterations. He was named in the start list for the 2015 Tour de France and the 2016 Tour de France.

Mattia Cattaneo is an Italian professional road bicycle racer, who currently rides for UCI WorldTeam Deceuninck–Quick-Step. As an amateur, Cattaneo won the Girobio in 2011 for the U.C. Trevigiani–Dynamon–Bottoli team. He was named in the start list for the 2015 Vuelta a España.

Martin Campbell is a Scottish badminton player from BC Adliswil Zurich. Campbell started playing badminton when he was around seven years old, and joined the national team in 2008. He was the bronze medalist at the 2008 Commonwealth Youth Games in Pune, India, and competed at the 2014 and 2018 Commonwealth Games. He won his first National Championships title in 2015.

Scott Christopher Thwaites is a British cyclist, who currently rides for UCI ProTeam Alpecin–Fenix. He represented England in the 2014 Commonwealth Games road race and won the bronze medal.

Yutaka Baba , also known as Mokō (もこう) is a Japanese streamer, YouTuber, voice actor, singer and former professional gamer. He posts Let's Play videos on YouTube and Niconico, and perform as a tarento on video game-related programs. He uses the real name when acting as a voice actor.

Fu Mingtian is a China born Singaporean badminton player. Fu came to Singapore in 2003 and became a Singapore citizen in 2007 under the Foreign Sports Talent Scheme. Fu became the first female Singaporean player to win the Southeast Asian Games women's singles badminton Gold medal in 2011 at the 26th SEA Games in Indonesia. She beat second-seed Ratchanok Intanon of Thailand 21–12, 21–18 en route to the Final match. In the Finals, she beat home favourite Adriyanti Firdasari of Indonesia 14–21, 21–12, 22–20. Despite Fu's achievements, she was not selected for the 2012 Summer Olympics and Gu Juan was selected.

Katie Amanda Colclough is a retired English road and track cyclist from Frieston near Grantham, Lincolnshire, and a former member of British Cycling's Olympic Development Squad.