Thomas Harrison (c. 1823 - 1894) was a British surveyor active in the Caribbean and Central America, who most notably served as the first Government Surveyor of Jamaica. He had apprenticed under Edward McGeachy (d. c. 1851), whom he succeeded as Surveyor of the county of Surrey on Jamaica. Harrison built upon the work of McGeachy and fulfilled the latter's dream of conducting a detailed scientific survey of the entire island.