Mortimer Robinson Proctor, known as Mortimer R. Proctor, was an American politician from Vermont. He served as the 62nd lieutenant governor of Vermont from 1941 to 1945, and as the 66th governor of Vermont from 1945 to 1947.

Proctor is a town in Rutland County, Vermont, United States. The population was 1,763 at the 2020 census. Proctor is home to the Vermont Marble Museum and Wilson Castle.