List of Famous people who are 40

Simon "Simi" Ammann is a Swiss ski jumper. He is one of the most successful athletes in the history of the sport, having won four individual Winter Olympic gold medals, in 2002 and 2010, and is the only ski jumper to have achieved the gold double–double at the Winter Olympics. His other achievements include winning the 2007 Ski Jumping World Championships, the 2010 Ski Flying World Championships, the 2010 Nordic Tournament, and the 2010 Ski Jumping World Cup overall title.

Clemency Burton-Hill is an English broadcaster, author, novelist, journalist and violinist. In her early career she also worked as an actress. In January 2020 she suffered a brain haemorrhage and underwent emergency surgery in New York City.

Robert Lester Zamora is an English former professional footballer who played as a striker. Zamora began his career at Football League club Bristol Rovers, but was soon signed by Brighton & Hove Albion, where he found first-team success. Zamora scored 77 goals in three seasons and helped the club achieve two successive promotions.

Dylan Marie Dreyer is an American television meteorologist working for NBC News. She is a weather anchor and rotates with Sheinelle Jones in the Orange Room on Weekend Today and MSNBC on weekends. Dreyer frequently appears on Today on weekdays as a weather correspondent and as a fill-in for Al Roker and Carson Daly. She also appears on The Weather Channel and on NBC Nightly News. Dreyer joined NBC News in September 2012 after having worked at the now former NBC station WHDH in Boston, Massachusetts since 2007.

Alan Kou, also known as Alan Ko, is a Taiwanese singer and actor.

Michael John Clarke is an Australian cricket commentator and former cricketer. He led Australia to their 5th Cricket World Cup triumph, when his team were victorious in the final of the ICC Cricket World Cup 2015 at the MCG against New Zealand. He is regarded as one of the best batsmen of his generation.

Una Theresa Imogene Healy is an Irish singer-songwriter, musician and television presenter. She rose to fame in 2008 as a member of five-piece girl group The Saturdays, who are signed to Fascination and Polydor Records. In 2006, she had represented Ireland in the Eurovision Song Contest, where she sang with Brian Kennedy on the song "Every Song Is a Cry for Love"; they placed tenth overall. Healy then auditioned for the Saturdays in 2007, after struggling to find success in her native country. Once she had successfully auditioned, she began recording music and releasing a number of hits.

Austin Bennett Tice is a freelance journalist and a veteran U.S. Marine Corps officer who was kidnapped while reporting in Syria on August 14, 2012.

Elano Blumer, known as Elano, is a Brazilian professional football manager and former player. He is the current head coach of Brazilian Série D club Ferroviária.

Helen Lindes Griffiths is a Spanish actress and model who was awarded Miss Spain 2000 and placed 2nd Runner-up to Lara Dutta of India in the Miss Universe 2000 contest.