List of Famous people who are 40

Rajaa al-Sanea is a Saudi writer who became famous through her novel Girls of Riyadh. The book was first published in Lebanon in 2005 and in English in 2007. The book was long-listed for the Dublin Literary Award in 2009.

Muhammad Taufik bin Batisah is a Singaporean singer and winner of the first season of the reality TV series Singapore Idol.

Chen Chun-hui born 8 March 1981, is a Taiwanese baseball player who currently plays for Uni-President Lions of Chinese Professional Baseball League. He currently plays as catcher for the Lions, but saw very little action on the field.

Xia Da is a Chinese manhua artist. She is best known for creating the comics Zi Bu Yu and Chang Ge Xing, and five million copies of her works have been sold as of 2018. Her art has been noted for its classical style, and have been met with positive reception in both China and Japan.

Prince Moulay Ismail of Morocco is the son of Prince Moulay Abdallah and Lalla Lamia Solh. His mother is daughter of Riad Al Solh, the first Prime minister of Lebanon. The Prince has one older brother, Prince Moulay Hicham.

Lia is a Japanese singer-songwriter. She has performed various video game and anime theme songs, such as for Key's visual novels, Air, Clannad, and Tomoyo After: It's a Wonderful Life, the opening theme for Angel Beats!, as well as theme songs for RF Online and Initial D Fourth Stage under Avex Trax. The Vocaloid IA was recorded with Lia's voice, and was released on January 27, 2012.

Zhou Shuguang, also known as Zuola, is a Taiwanese blogger and citizen journalist. He has become known for traveling around China to document injustice done to citizens.

Mizz Eva was the first female rapper in Hong Kong. Her first album was "L for..(2004)".