List of Famous people who are 40

Massimo Donati is an Italian former professional footballer, who played as a central or defensive midfielder.

Shree Narayan Singh is an Indian film director and editor, known for films such as Toilet: Ek Prem Katha (2017), Batti Gul Meter Chalu (2018) and Yeh Jo Mohabbat Hai (2012).

Charlie Hofheimer is an American film, television, and theater actor. He landed his first film role as Jim Garland in the 1994 version of Lassie. He is known for his role as Abe Drexler on Mad Men. He has also made many TV guest appearances in a number of TV series.

Lee Won-Hee is a South Korean quadruple judo champion. Lee won the gold medal in the men's lightweight division at the 2004 Summer Olympics in Athens, Greece. He was the world champion in 2003. He also won the gold medal in 2006 Asian Games and 2003 Asian Judo Championships.

Brett John Finch is an Australian former professional rugby league footballer who played in the 2000s and 2010s. A New South Wales State of Origin representative half back, he played in the National Rugby League for Australian clubs the Canberra Raiders, Sydney Roosters, Parramatta Eels and Melbourne Storm. Finch also played in the Super League for English club the Wigan Warriors.

Jare Henrik Tiihonen, better known by his stage name Cheek, is a Finnish former rapper. During his career, he released nine studio albums.

Hong Soo-hyun is a South Korean actress. She is best known for her roles in Dae Jo Yeong, The Princess' Man and Goodbye Dear Wife.

Sonata Arctica is a Finnish power metal band from the town of Kemi, Finland. Created as a hard rock band named Tricky Beans, they later changed to Tricky Means and finally to Sonata Arctica, when they shifted to power metal. The current line-up consists of singer, keyboardist and songwriter Tony Kakko, guitarist Elias Viljanen, bass guitarist Pasi Kauppinen, keyboardist and keytarist Henrik Klingenberg, and drummer Tommy Portimo. All the musicians of the band's history except Portimo also acted as backing vocalists.