List of Famous people who are 31

Will Tupou is a New Zealand rugby union footballer who plays for the Sunwolves in the Super Rugby competition. He previously played rugby league for the North Queensland Cowboys in the NRL. He represents Japan at international level, having satisfied residency requirements.

Carsten Kammlott is a German professional footballer who plays as a forward.

Saad Abdullah al-Sheeb is a Qatari professional footballer who plays as a Goalkeeper for Al Sadd SC and the Qatar national football team. He made his debut for the senior national team of Qatar in 2009.

Huang Sheng-hsiung is a Taiwanese baseball Pitcher. He was drafted by the EDA Rhinos with the third overall pick in the 2013 CPBL draft.

Masato Kudo is a Japanese football player who currently plays for Brisbane Roar in A-League.

The Japanese idol girl group AKB48 has many members who have left the group for various reasons such as focusing on solo careers. Some members have left to help launch AKB48's sister groups. The member lineup often changes as when girls get older, they "graduate" from the group, and are replaced by members promoted from the trainees. Others have dropped out of the group without any graduation. Yuki Usami was the first member to graduate from the group on March 31, 2006.

Laura María Tobón Yepes is a Colombian presenter, model, singer, and YouTuber.

Natanael Batista Pimenta, simply known as Natanael, is a Brazilian footballer who plays as a left back for Internacional.

Loïc Pietri is a French judoka who competes in the 81 kg category. He won the world title in 2013, placing third in 2014 and second in 2015. At the 2016 Olympics he was eliminated in the first bout. His father, Marcel Pietri, won a silver medal at the 1986 European Championships.

Luise Malzahn is a German judoka. She competed at the 2016 Summer Olympics in Rio de Janeiro, in the women's 78 kg. She finished in 5th place after losing to Anamari Velenšek of Slovenia in the bronze medal match.