List of Famous people who are 31

Gustavo Adrián Ramírez Rojas is a professional Paraguayan footballer who currently plays for Rosario Central.

Ryo Miyake is a Japanese fencer. At the 2012 Summer Olympics he competed in the Men's foil, but was defeated in the second round. He won a silver medal in the team foil event.

Albin Alois Ouschan is an Austrian pool and billiards player. Ouschan was the 2016 WPA World Nine-ball Championship winner, as well as the runner-up in 2014. He also won the 14.1 Continuous European championship the same year. Ouschan is a multiple time Austrian champion in 8-ball, ten-ball and straight pool. He won the World 9-ball Championship for the second time in 2021, beating Omar Al Shaheen 13–9 in the final.

Laura Ester Ramos is a Spanish female water polo goalkeeper. At the 2012 Summer Olympics, she competed for the Spain women's national water polo team in the women's event, winning the silver medal. She also competed at the 2016 Summer Olympics. She is 5 ft 7 inches tall.

Vladimír Darida is a Czech footballer who plays as a central midfielder for German club Hertha BSC and the Czech Republic national team.

Hicham Belkaroui is an Algerian professional footballer who plays for MC Oran and the Algeria national team. He plays primarily as a centre-back.

Yasemen Saylar is a Turkish former professional basketball player.

Mackenzie Rosman is an American actress. She is known for her television role as Ruthie Camden on The WB's long-running drama series 7th Heaven.

Katsuki Akagawa is a professional Japanese baseball player.

Boris Vukčević is a German footballer of Croatian descent who plays as a midfielder. Due to the aftermaths of a car accident in 2012 he is currently inactive.