Roscoe Lewis Robson (December 6, 1897 – April 1, 1964) was a politician in Ontario, Canada.
He was a Progressive Conservative member of the Legislative Assembly of Ontario from 1943 to 1958 who represented the riding of Hastings East.
He was born in Moira, Ontario, the son of Lewis Robson, and educated in Belleville.
He was elected to the provincial legislature in 1943 defeating Liberal candidate Edward Brown by 1,601 votes.
He served 15 years as a backbench supporter in the governments of George Drew, Thomas Kennedy, and Leslie Frost.