List of Famous people who are 31

Fernando Juan Fitz-James Stuart y de Solís, 17th Duke of Huéscar, GE, is a Spanish aristocrat. He is the current Duke of Huéscar, and heir apparent to the dukedom of Alba and thereby to the headship of the House of Alba.

Erick Raúl Alemán Ramírez, better known by his stage name Alemán, is a Mexican rapper.

Sayuri Iwata is a Japanese actress and former singer.

Rubén Alejandro Botta Montero is an Argentine footballer who plays as an attacking midfielder for Sambenedettese.

Valérie Courtois is a Belgian volleyball player who plays as libero for Stade Français Paris Saint Cloud.

Maicon Marques Bitencourt, simply known as Maicon, is a Brazilian footballer who plays as a winger.

Renan Zanatta Buiatti is a Brazilian volleyball player. He was part of the Brazil men's national volleyball team that finished in second place at the 2014 World Championship in Poland.

Rikako Morita is a Japanese professional golfer.

Kota Mizunuma is a Japanese association football player currently playing for Yokohama F. Marinos. His father, Takashi, was also a professional footballer.

Roman Lob is a German recording artist. In January and February 2012, Lob was a contestant in the German TV show Unser Star für Baku, produced by the German broadcasting stations Pro7 and Das Erste. He is also the lead singer of the band Rooftop Kingdom, an alternative rock band with origins in Neustadt (Wied). He was also a founding member of German Metalcore band, Days of Despite.