List of Famous people who are 51

Didier Rous is a French former professional road bicycle racer. He competed in the men's individual road race at the 1996 Summer Olympics.

Gökhan Kırdar is a Turkish musician and film score composer.

Jo Planckaert is a former Belgian professional road bicycle racer. He is the son of former professional road bicycle racer Willy Planckaert, brother of famous road bicycle racers Eddy and Walter Planckaert.

Maria Michela Marzano is an Italian researcher, philosopher and writer. Politically connected to the Italian left, she was elected a Member of the Italian Parliament for the Democratic Party in February 2013.

Hendrik "Erik" Dekker is a retired Dutch professional road racing cyclist active from 1992 until 2006. He was a member of the Rabobank cycling team from 1996 til 2006. From 2007 to 2015 he was one of Rabobank's team managers.

Nick Sagan is an American novelist and screenwriter. He is the author of the science fiction novels Idlewild, Edenborn, and Everfree, and has also written scripts for episodes of Star Trek: The Next Generation and Star Trek: Voyager. He is the son of astronomer Carl Sagan and artist and writer Linda Salzman.

Tarkan Gözübüyük is the bass player of the Turkish heavy metal band Mezarkabul.

Jetrin Wattanasin or J Jetrin, is a Thai pop musician and actor who got his first major break in the music business when he secured heavy promotion by the Thai entertainment company, GMM Grammy. Since 1991, he has produced numerous commercially successful music albums, and continues to tour internationally in support of his most recent recordings. Upon the conclusion of his current United States tour, entitled "The Return of J Jetrin," he will have completed the most extensive tour of the United States by any Thai recording artist, with dates scheduled in 12 US cities, spanning from Hawaii to the East Coast.