Colin Campbell Cooper, Jr. (March 8, 1856 – November 6, 1937) was an American impressionist painter of architectural paintings, especially of skyscrapers in New York City, Philadelphia, and Chicago.

Georgia Arianna, Lady Colin Campbell (née Ziadie, born 17 August 1949), also known as Lady C, is a British Jamaican author, socialite, and television personality who has published seven unauthorised books about the British royal family.

(9 March 1853 – 18 June 1895) a Scottish Liberal politician who sat in the House of Commons from 1878 to 1885.

Colin Campbell Eadie Ross (11 October 1892 – 24 April 1922) was an Australian wine-bar owner who was wrongfully convicted and executed for the murder of a child, which became known as the Gun Alley Murder, despite evidence of his innocence.