Sir Geoffrey Cornewall, 6th Baronet (7 May 1869 – 21 January 1951) of Moccas Court, Herefordshire, was a British archer who competed at the 1908 Summer Olympics in London.
He was born at Moccas Court, Moccas, in Herefordshire. He was educated at Eton College and then at Trinity Hall, Cambridge, where he was a member of the Pitt Club.
Cornewall entered the double York round event in 1908, taking 15th place with 430 points. He also participated in the Continental style event but his result is unknown.
He succeeded his father to the Cornewall Baronetcy on 25 September 1908. He was a Justice of the Peace and Deputy Lieutenant for Herefordshire, and was appointed High Sheriff of Herefordshire in 1913 and Vice Lord-Lieutenant in 1934. He was an Alderman of the Herefordshire County Council.
- Cook, Theodore Andrea (1908). The Fourth Olympiad, Being the Official Report. London: British Olympic Association.
- De Wael, Herman (2001). "Archery 1908". Herman's Full Olympians. Retrieved 12 July 2006.