Robert George Winsor (1876 – June 1, 1929) was a fisherman and political figure in Newfoundland.
Winsor ended his schooling at the age of twelve to become a fisherman, later becoming captain of a schooner working in the Labrador fishery.
He served as chairman of the FPU council in Wesleyville and for the Bonavista district.
In 1919, he opened his own business, including a sawmill, near Wesleyville.
Winsor retired from politics in 1924, but ran unsuccessfully in a 1924 by-election held after two elected representatives for Bonavista Bay were named to the Executive Council.