List of Famous people who are 40

Lucie Décosse is a retired female French judoka.

Cecilia Freire Peñas is a Spanish actress best known for playing Blanca Román on Física o Química (2008–2009) and Rita Montesinos on Velvet (2014–2016).

Lowell Bailey is an American biathlon coach and retired biathlete who competed from 2001 until 2018.

Carlos Coloma Nicolás is a Spanish cross-country mountain biker. At the 2012 Summer Olympics, he competed in the Men's cross-country at Hadleigh Farm, finishing in 6th place. He improved this result four years later at the 2016 Summer Olympics, where he finished third, behind Nino Schurter and Jaroslav Kulhavý, and won the bronze medal. He was on the start list for the 2018 Cross-country European Championship and he finished.

Chou Ssu-chi is a Taiwanese professional baseball outfielders for the Chinatrust Brothers of Chinese Professional Baseball League (CPBL). At the end of 2008, when the dmedia T-REX folded in a gambling scandal, he was picked by the Brother Elephants in the third round of the redistribution draft.

Geneviève Jeanson is a former professional bicycle racer from Quebec, Canada. She won the world junior road and time trial championships in 1999 and the Tour de Snowy in 2000. Later that year she won La Flèche Wallonne World Cup race. She joined the Canadian Olympic team that year. She acknowledged in a documentary on Radio-Canada on September 20, 2007, that she had been administered EPO more or less continuously since she was 16 years old.

Jung Ryeo-won is a South Korean-born Australian actress. She began her entertainment career as a singer in the now-defunct girl group Chakra, and first rose to fame in the hit television series My Name Is Kim Sam-soon. She is also known for her roles in Two Faces of My Girlfriend, Castaway on the Moon, and History of a Salaryman.

Javier Pereira Collado is a Spanish actor. He won Goya Award for Best New Actor for his performance in Stockholm (2013) at the 28th Goya Awards.

Nadeeka Lakmali Bambarenda Liyanage is a Sri Lankan javelin thrower. She is regarded one of the finest javelin throwers in Sri Lanka with global fame. She is also attached with the Sri Lankan Army and current national record holder in women's javelin throw event.

María Ignacia Allamand Lyon is a Chilean film and television actress.