List of Famous people who are 40

Máté Kocsis is a Hungarian jurist, sports administrator and politician, who served as Mayor of Józsefváros from 2009 to 2018. He also represents Józsefváros in the National Assembly of Hungary from 2010 to 2014, and since 2018. He is the current leader of the Fidesz parliamentary group. Since 2015 he is the president of the Hungarian Handball Federation.

Toni Seifert is a German rower. As well as being a double world champion in the men's eight, he has twice competed for Germany at the Olympics in the men's coxless four.

Tobias Schenke is a German actor most famous for playing the character of Florian Thomas in Ants in the Pants and More Ants in the Pants and the older Jürgen Bartsch in The Child I Never Was.

Fiona Sit is a Hong Kong singer and actress.

Shohei Tateyama is a former Japanese professional baseball pitcher and currently pitting coach for the Tohoku Rakuten Golden Eagles of the Nippon Professional Baseball (NPB). He played for the Tokyo Yakult Swallows of the NPB.

Miu Chu (Chinese: 朱俐靜; Wade–Giles: Chu¹ Li⁴-ching⁴) is a Taiwanese singer. She was the winner of the third season of the Taiwanese reality television show Super Idol.

Erik Guay is a Canadian former World Cup alpine ski racer. Racing out of Mont-Tremblant, Quebec, Guay won the World Cup season title in super-G in 2010 and was the world champion in downhill in 2011, as well as in the super-G in 2017. With 25 World Cup podiums, he is the career leader for Canada.

Gregory B. Jones, Sr. is a former American football fullback. He was drafted by the Jacksonville Jaguars in the second round of the 2004 NFL Draft and also played for the Houston Texans. He played college football at Florida State.

Julien Decroix, better known as Soan, is a French singer-songwriter who won in 2009 the seventh season of the French music competition Nouvelle Star.

Peter Andreyevich Nalitch, also spelled as Petr Nalich or Pyotr Nalich, is a Russian singer and composer who represented Russia at the Eurovision Song Contest 2010 in Oslo. In the final on May 29, he came 11th with his song "Lost and Forgotten".