Robert James Watson (February 23, 1846 – October 16, 1931) was a Canadian politician.

Born in Saint John, New Brunswick, he was educated at a Public School and Hamilton University.

A farmer, he ran unsuccessfully in the Ontario riding of Muskoka and Parry Sound for the House of Commons of Canada in 1900.

A Presbyterian, he married Carrie Schoby on April 23, 1878.

This article about a Liberal Party of Canada Member of the Parliament of Canada is a stub.