List of Famous people who are 40

Omar bin Osama bin Mohammed bin 'Awad bin Laden, better known as Omar bin Laden, is one of the sons of Osama bin Laden and his first wife and first cousin Najwa Ghanem. He is the fourth-eldest son among 20 children of Osama bin Laden. Older reports have described Omar and his brother Abdallah bin Laden as nephews or cousins of Osama bin Laden.

Yuki Abe is a Japanese football player who plays for Urawa Reds as a midfielder. He played for Japan national team.

Nevşin Mengü is a Turkish journalist and television presenter.

Hanna Carolina Alström is a Swedish actress best known for starring in Kingsman: The Secret Service and its sequel Kingsman: The Golden Circle as Crown Princess Tilde of Sweden.

Mariana Ximenes do Prado Nuzzi is a Brazilian actress. Her first role was in the telenovela Fascinação in 1998 where she portrayed the role of Emília Gouveia. In the same year she played the role of Ruth Stern in the film Caminho dos Sonhos. In 2000, she played in Uga-Uga portraying "Bionda". This role rise to prominence as she became widely known in Brazil and internationally. Later in 2001, she offered her services in the Portuguese voice over translation in the Canadian/Chinese animated series Braceface, for the character Sharon Spitz. She later played the protagonist in Cobras & Lagartos in 2006 and Lara in A Favorita, later in 2008. In 2010, she portrayed her first villainous role in the critically acclaimed telenovela Passione. Since 2010 she has appeared in several telenovelas, television series, films and theatre performances. In 2016, she starred the successor of Totalmente Demais, Haja Coração, together with Malvino Salvador.

José Manuel Calderón Borrallo is a Spanish basketball executive and a former professional basketball player. With the Spain national team, he won a FIBA World Cup title in 2006, two Olympic silver medals in 2008 and 2012, as well as a bronze medal at the 2016 Summer Olympics. He also won a EuroBasket title in 2011, two silver medals in 2003 and 2007 as well as a bronze in 2013. Calderón earned an All-EuroBasket Team selection in 2007. He also held the record for most assists in the history of the Toronto Raptors, until Kyle Lowry surpassed him in January of 2020.

Jürgen Melzer is an Austrian professional tennis player. He reached a career-high singles ranking of world No. 8 in April 2011, and a doubles ranking of world No. 6 in September 2010. He is a left-handed tennis player, but is right-handed in everyday life. He has a younger brother, Gerald Melzer, with whom he has played doubles in several tournaments.

Kunal Nayyar is a British-born Indian actor. He is known for portraying Rajesh Koothrappali on the sitcom The Big Bang Theory (2007–2019). Forbes listed Nayyar as the world's third-highest-paid TV actor in 2015 and 2018, with earnings of US$20 million and US$23.5 million, respectively.

Sandeep Singh is an Indian film producer who works in Hindi films. He started his career as a journalist and later joined Bhansali Productions as the CEO in 2011. He founded the film production company Legend Studios in 2015. Singh is known for producing movies like Mary Kom, Aligarh, Sarabjit, Bhoomi, PM Narendra Modi, and Jhund.

Jan Frodeno is a German triathlete. He is the gold medal winner in men's triathlon at the 2008 Summer Olympics in Beijing, 3-time winner of the Ironman World Championship in 2015, 2016, and 2019, and 2-time winner of the Ironman 70.3 World Championship in 2015 and 2018. He is the world record holder for the long distance, set in Roth, Germany in 2016 with 7:35:39 hours.