List of Famous people who are 42

Tadaaki Hirakawa is a former Japanese football player.

Cara Black is a former professional tennis player from Zimbabwe who played until 2015. She is primarily a doubles specialist, winning 60 WTA and 11 ITF titles in that discipline. A former No. 1 ranked women's doubles player in the WTA Rankings, she has won ten Grand Slam titles in women's doubles and mixed doubles combined. By winning the mixed doubles title at the 2010 Australian Open, Black became the third woman in the Open Era to complete a Career Grand Slam in mixed doubles. Having won one singles title on tour, she also peaked at no. 31 in the singles rankings in March 1999.

Sarah Cain is an American contemporary artist who lives and works in Los Angeles, California.

Jesseca Liu is a Malaysian actress, who is based in Singapore was named as one of the Seven Princesses of Mediacorp in 2006. She was prominently a full-time Mediacorp artiste from 2004 to 2010. Now she is a contracted artiste under MediaCorp and managed under HIM International Music.

Thomas Kirk Kristiansen is a Danish fourth-generation owner of The Lego Group. Together with his father Kjeld, and sisters Agnete and Sofie, they split ownership of a 75% stake in the company.

Jawad El Hajri, also known as Jaouad El Hajri, is a retired footballer. In 2006, he won one cap for the Morocco national football team in a friendly against Burkina Faso.