Oscar Fulton (March 22, 1843 – November 22, 1907) was an Ontario merchant and political figure. He represented Stormont in the House of Commons of Canada as a Liberal-Conservative member from 1878 to 1882.
He was born in Cornwall Township in Canada West in 1843. He operated a store, sawmill and tannery at Avonmore in partnership with his brother-in-law; they were also involved in the sale of lumber.
Fulton served with the Canadian Militia joining the Dickinson’s Landing Infantry Company on July 20, 1866 as a Lieutenant. The company became part of the 59th Stormont and Glengarry Battalion in 1868 and he served with the battalion at Cornwall during the Fenian Raids of 1870. He left the battalion on March 22, 1872.