Pioneer of C programming language.

Richard Steven Valenzuela (May 13, 1941 – February 3, 1959), better known by his stage name Ritchie Valens, was an American guitarist, singer and songwriter.

Jean Ruth Ritchie (December 8, 1922 – June 1, 2015) was an American folk singer, songwriter, and Appalachian dulcimer player, called by some the "Mother of Folk".

Guy Stuart Ritchie (born 10 September 1968) is an English film director, producer and screenwriter.

Fort Ritchie in Cascade, Maryland was a military installation southwest of Blue Ridge Summit, Pennsylvania and southeast of Waynesboro in the area of South Mountain.

(born 1964) a British artist who currently lives and works in New York City.

Albert Cabell Ritchie (August 29, 1876 – February 24, 1936) was an American lawyer and politician.

(26 October 1853 — 3 February 1903) a Scottish philosopher who had a distinguished university career at Edinburgh, and Balliol College, Oxford, and after being fellow of Jesus College and a tutor at Balliol College was elected professor of logic and metaphysics at St Andrews.

(born 29 August 1989) an English actress and singer.

Richard Hugh Blackmore (born 14 April 1945) is an English guitarist.