List of Famous people who are 40

Eric Daniel Djemba-Djemba is a Cameroonian former professional footballer who played as a midfielder. He previously played club football in France, England, Qatar, Denmark, Israel, Serbia, Scotland, India and Indonesia. In international competition, he represented Cameroon, having appeared for his country 34 times, including at the 2002 FIFA World Cup.

Nabil Baha is a retired Moroccan footballer who played as a striker.

Laura Michelle Kelly is an English actress and singer who is best known for originating the roles of Mary Poppins in Mary Poppins on West End and Sylvia Llewelyn Davies in Finding Neverland on Broadway.

Diego Alejandro Rivero is an Argentine football midfielder who plays for Chacarita Juniors.

Björn Schlicke is a German retired footballer who played as a defender.

Julián Cerdá Vicente, known as Juli, is a Spanish professional footballer who plays as an attacking midfielder for CD Alcoyano.

Marcel Augusto Ortolan, commonly known as Marcel, is a Brazilian footballer.

Tomáš Hübschman is a Czech professional footballer who plays for FK Jablonec. He can play as a centre-back or defensive midfielder and is known for his strength, speed and tight marking.

Conrad Gerard Smith is a New Zealand rugby union coach and former player, who played predominantly at centre. He captained the Hurricanes in Super Rugby, and played for New Zealand from 2004 until 2015. He was a key member of New Zealand's 2011 and 2015 Rugby World Cup winning teams. Following the 2015 World Cup he retired from international rugby and took up a contract with Pau in France, before retiring in 2018.

Juan Martínez de Irujo is a professional Basque pelota player for the Aspe team.