Charles Geddes Clarkson Hyslop (29 December 1900 – 13 November 1988) was a 20th-century British architect, trained at the British School in Rome. Linked with the Bloomsbury set, his work, mostly in the classical style, was fashionable amongst the British upper classes and intelligentsia in the years immediately surrounding World War II. He is remembered today as a restorer of country houses and a designer of knowledgeable pastiches.