List of Famous people who are 31

Lee Joon-Kyung better known by his stage name Dok2, is a South Korean rapper, record producer and co-founder of now-defunct Illionaire Records.

Irfan Fadhilah is an Indonesian badminton player from Jaya Raya Jakarta club.

Emi Nakajima is a Japanese football player. She plays for INAC Kobe Leonessa and Japan national team.

Nicole Estelle Faria is an Indian actress, model and the winner of the Miss Earth 2010 pageant. She is the brand ambassador for various brands including Clean & Clear, a line of dermatology products owned by Johnson & Johnson and was the international brand ambassador for Swiss luxury wristwatches Frédérique Constant. She was featured on international fashion and lifestyle magazine covers, like Elle, Vogue, Cosmopolitan, JFW, Man's World Magazine and appeared on the Kingfisher Calendar in 2014. She has made significant contribution in spreading awareness about the detrimental effect of pollution on Rabindra Sarobar Lakes in Kolkata, West Bengal.

Kaito Shigeno is a Japanese international rugby union player who plays in the scrum-half position. He currently plays for the Sunwolves in Super Rugby and the NEC Green Rockets in Japan's domestic Top League.

Shohei Otsuka is a Japanese football player currently playing for SC Sagamihara.