List of Famous people who are 31

Haochen Zhang is a Chinese pianist from Shanghai, China. He was a Gold Medalist and First Prize winner of the Thirteenth Van Cliburn International Piano Competition in 2009, becoming one of the youngest winners in the history of the competition. Zhang received a 2017 Avery Fisher Career Grant in recognition of his outstanding talents.

Ihor Plastun is a Ukrainian professional footballer who plays as a defender for Belgian First Division A club Gent.

Djiman Waidi Koukou is a Beninese professional footballer who plays for French club Red Star F.C. as a midfielder.

Luca Zuffi is a Swiss footballer who plays as midfielder for Basel in the Swiss Super League.

Lee Sang-su is a South Korean table tennis player. He won two singles titles at the ITTF World Tour, the first one was in 2010. He reached semifinals in singles event at the 2017 World Championships.

Masahiro Ishikawa is a former Japanese football player.

Ayla Marie Kell is an American actress. She is best known for the role of Payson Keeler in the ABC Family series Make It or Break It.

Lindaweni Fanetri is a former Indonesian badminton player. She played in women's singles. Fanetri is from PB. Suryanaga, a badminton club from Surabaya, the same club with the likes of Sony Dwi Kuncoro, Alvent Yulianto, and Ryan Agung Saputra.

Diego Renan de Lima Ferreira, known as Diego Renan, is a Brazilian footballer who plays for CSA as a full back.