People educated at Hillhead High School

Ian Campbell Dunn (1 May 1943 – 10 March 1998) was a Scottish gay rights and pro-paedophilia campaigner. He was founder of The Scottish Minorities Group (later known as Outright Scotland), one of the first British gay rights organisations, and helped establish Britain's first gay newspaper, Gay News. Dunn also worked as the editor of Gay Scotland magazine and co-founded the Paedophile Information Exchange.

Alexander Fleck, 1st Baron Fleck (11 November 1889 – 6 August 1968) was a British industrial chemist.

Sir Ian Kinloch MacGregor, KBE (21 September 1912 – 13 April 1998) was a Scottish metallurgist and industrialist, most famous in the UK for his controversial tenure at the British Steel Corporation and his conduct during the 1984–85 miners' strike while managing the National Coal Board.