List of Famous people who are 40

Michael Rady is an American actor.

Yōko Maki is a Japanese manga artist best known for Aishiteruze Baby. Maki debuted in 1999 with Love Service! in Ribon Original magazine. She also has a pet dog named Leo and her profile in the Aishiteruze Baby comic says her hobby is "...blowing soap bubbles" and that one of her skills is "...passing quickly through a crowd of people". She has a sister, Mochida Aki, which she made manga with such as, Zen Zen.

Dawn Orienne Olivieri is an American actress perhaps best known for her turn as Lydia in Heroes and Monica Talbot in House of Lies.

Mikhail Viktorovich Zygar is a Russian journalist, writer and filmmaker, and the founding editor-in-chief of the only Russian independent news TV-channel, Dozhd (2010–2015). Under Zygar's leadership, Dozhd provided an alternative to Kremlin-controlled federal TV channels by focusing on news content and giving a platform to opposition voices. The channel's coverage of politically sensitive issues, like the Moscow street protests in 2011 and 2012 as well as the conflict in Ukraine, has been dramatically different from the official coverage by Russia's national television stations. Zygar is also the author of the book All the Kremlin's Men, the history of Putin's Russia, based on interviews with Russian politicians from Putin's inner circle. The book has become an outstanding best-seller in Russia.

Kara Marie Lawson is the head coach of the Duke Blue Devils women's basketball team, and a former assistant coach for the Boston Celtics of the NBA. She is a former American professional women's basketball player in the Women's National Basketball Association (WNBA) and a basketball television analyst for ESPN and the Washington Wizards. Lawson primarily played as a shooting guard. She won a gold medal at the 2008 Olympics in Beijing, China. Lawson retired from the WNBA in 2015 to focus on her broadcasting career.

Boris Brejcha is a German DJ and record producer. He describes his music style as "High-Tech Minimal." He uses the venetian carnival mask as his signature look, being inspired by the Carnival in Rio, at the times when he was performing for the first time, in Brazil. Since then, he has been performing at clubs around the world and at some of the biggest festivals such as Tomorrowland, Timewarp and Exit festival. Boris and his friends Ann Clue and Deniz Bul founded the label "Fckng Serious" in 2015. In August, 2019, he performed for the first time in Ibiza at Hï Ibiza club.

Tristan Garcia is a French philosopher and novelist. His first novel, La meilleure part des hommes (2008), won France’s Prix de Flore. It was translated into English in 2010 with the title Hate: A Romance. His most important philosophical work, Form and Object, was translated into English in 2014.

Mai Nakahara is a Japanese voice actress and singer associated with I'm Enterprise. She played Rena Ryūgū in Higurashi When They Cry, Nagisa Furukawa in Clannad and Juvia Lockser in Fairy Tail. She performed theme songs for each series, some of which have charted on Oricon.

Guillermo Martín Taboada is a singer, composer, actor and Spanish presenter.

Safet Babic is a German politician of Bosnian descent. He has been a candidate for the far-right National Democratic Party of Germany (NPD) in European, parliamentary, state assembly and local elections.