List of Famous people who are 31

Cao Yupeng is a Chinese snooker player. He won the 2011 Asian Under-21 Championship, thus qualifying for the professional main tour for the 2011–12 season. In his first season on the circuit, he reached the last 16 of the World Championship.

Kim Eun-jung, nicknamed "Annie" is a South Korean curler from Uiseong. She currently skips her own team on the World Curling Tour. Kim skipped the national team from 2016 to 2018 and represented Korea on home ice at the 2018 Winter Olympics where her team won a silver medal.

Dawid Grzegorz Kubacki is a Polish ski jumper. He is a member of the national team and competed at the Winter Olympics in 2014 and 2018. He is the 2019 World Champion on the normal hill and winner of the 2019-20 Four Hills Tournament, as well as the 2017 World Champion and bronze medal winner at the 2013 World Championships in the large hill team competitions.

Bobana Veličković was a Serbian sport shooter. At the 2012 Summer Olympics, she competed in the Women's 10 metre air pistol. At the 2016 Summer Olympics, she competed in the Women's 10 metre air pistol and the Women's 25 metre pistol, finishing in 7th place in 10m.

Brita Sigourney is an American freestyle skier. She attended Santa Catalina School in Monterey, California, and later went on to attend the University of California, Davis, where she played water polo. She trained in her career as a freestyle skier in Park City, Utah. She won a silver medal in the superpipe at Winter X Games XV in 2011, followed with a bronze in 2012. She has competed in both the 2014 and 2018 Winter Olympics, finishing 6th in 2014. She won a bronze medal in the 2018 Olympics on February 19, 2018, with a score of 91.6, which she achieved on her third run. Up until her third run, the judges expressed to an NBC broadcaster of their approval of her form and amplitude but that she needed improvement with her creativity. She was good friends with her competitor Annalisa Drew and regretted bumping her off the podium. She won another bronze at the 2019 FIS World Championship in halfpipe.

Scott Peter Reardon, is an Australian Paralympic leg amputee sprinter and water skier. He won water skiing world championships in 2007 and 2009. He represented Australia at the 2012 Summer Paralympics in athletics, winning a silver medal in the Men's 100 m T42. At the 2016 Rio Paralympics, he went one placing better to win the gold medal. Reardon has won the Men's 100 m T42 in three consecutive World Para Athletics Championships, from 2013 to 2017. He has been selected for the 2020 Summer Paralympics, his fourth games.

Christopher Wolfgang Georg August Schindler is a German professional footballer who plays as a centre-back and captains Championship club Huddersfield Town. He has also played for Germany U21s.

Muhammad Ahsan Ali Khan is an American cricketer.

Toni Andreas Leistner is a German footballer who plays as a defender for 2. Bundesliga club Hamburger SV.

Seán William McLoughlin, better known as Jacksepticeye, is an Irish YouTuber best known for his vlogs and comedic Let's Play series. As of February 2021, his channel has over 13.8 billion views and 26.3 million subscribers, and is the most-subscribed Irish channel. He has participated in fundraisers that have raised millions for charity.