| Robert James Watson | |
| Smallimage: | Robert James Watson.jpg |
| Constituency Mp: | Parry Sound |
| Parliament: | Canadian |
| Predecessor: | District was created in 1903 |
| Successor: | James Arthurs |
| Term Start: | 1904 |
| Term End: | 1908 |
| Birth Date: | 23 February 1846 |
| Birth Place: | Saint John, New Brunswick |
| Party: | Liberal |
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. He was elected in the 1904 election for the riding of Parry Sound. A Liberal, he was defeated in 1908.
A Presbyterian, he married Carrie Schoby on April 23, 1878.