Thomas Graeme Cameron Gibson (9 August 1934 – 18 September 2019) was a Canadian novelist.
He was a Member of the Order of Canada (1992), a Senior Fellow of Massey College and one of the organizers of the Writers Union of Canada (chair, 1974–75).
He was also a founder of the Writers' Trust of Canada, a non-profit literary organization that seeks to encourage Canada's writing community.