John Robertson Pitt (July 1, 1885 – 1970) was a politician in Manitoba, Canada. He served in the Legislative Assembly of Manitoba as a Liberal-Progressive from 1935 to 1958.

The son of James Pitt and Mary D. King, Pitt was educated in Oneida. He first came to Manitoba as a seasonal farm worker in 1901 and returned to the Pierson district two years later. He was a general hardware merchant and funeral director. In 1913, he married Isabelle Hardy. Pitt chaired the Pierson School Board from 1918 to 1930.