Robert Hay (May 18, 1808 – July 24, 1890) was a furniture manufacturer and political figure in Ontario, Canada.
He was born in Tibbermore, Perthshire, Scotland in 1890, the son of Robert Hay, and apprenticed as a cabinet-maker in Perth.
Hay helped establish the Toronto, Simcoe and Lake Huron Union Railway which passed through New Lowell.
The company also produced other wooden items, such as clothespins, and supplied timber for railway construction.
Hay also helped found the St Lawrence Bank in 1872, raised livestock near New Lowell in partnership with his nephew Robert Paton, was a director of the Credit Valley Railway and took part in land speculation in the North-West Territories.