People educated at Cowbridge Grammar School

Sir Philip Anthony Hopkins CBE (born 31 December 1937) is a Welsh actor, composer, director and film producer. He is the recipient of multiple accolades, including an Academy Award, three BAFTAs, two Emmys and the Cecil B. DeMille Award. In 1993, he was knighted by Queen Elizabeth II for services to the arts. Hopkins received a star on the Hollywood Walk of Fame in 2003, and in 2008 he received the BAFTA Fellowship for lifetime achievement from the British Academy of Film and Television Arts.

Sir Philip Anthony Hopkins, CBE (born 31 December 1937) is a Welsh actor of film, stage, and television, and a composer and painter. After graduating from the Royal Welsh College of Music & Drama in 1957, he trained at the Royal Academy of Dramatic Art in London, and was then spotted by Laurence Olivier who invited him to join the Royal National Theatre. In 1968, he got his break in film in The Lion in Winter, playing Richard I.

Alun Lewis (1 July 1915 – 5 March 1944) was a Welsh poet. He is one of the best-known English-language poets of the Second World War.

Glanville Llewelyn Williams QC (Hon) FBA (15 February 1911 – 10 April 1997) was a Welsh legal scholar who was the Rouse Ball Professor of English Law at the University of Cambridge from 1968 to 1978 and the Quain Professor of Jurisprudence at University College, London, from 1945 to 1955. He has been described as Britain's foremost scholar of criminal law.

Peter Rawlinson is a British engineer based in California. He is the chief executive officer and chief technology officer of Lucid Motors and is known for his work as Chief Vehicle Engineer of the Tesla Model S and the Lucid Air.

Geoffrey Victor Price Chamberlain (21 April 1930 – October 2014) was a professor and academic head of department of obstetrics and gynaecology at St George's Hospital, London, editor in chief of the British Journal of Obstetrics and Gynaecology and president of the Royal College of Obstetricians and Gynaecologists (RCOG). At one time, he was president of the obstetrics and gynaecology section at the Royal Society of Medicine. He also authored numerous textbooks and journal articles on obstetrics.

Christopher Alan Leigh Mottershead (born 24 September 1958) is a British (Welsh) travel industry entrepreneur, and the UK Managing Director of Thomas Cook.

Alun Radcliffe Davies (1923 - 2003) was a Welsh Anglican priest in the last third of the twentieth century.

Sir Lewis Morris (23 January 1833 – 12 November 1907) was a Welsh academic and politician. He was also a popular poet of the Anglo-Welsh school.

Charles Vincent Stockwood was an Anglican priest, the Archdeacon of Man from 1938 to 1958.