Peter F. Welch (born May 2, 1947) is the United States Representative for the U.S. state of Vermont's at-large congressional seat. He also served as a Vermont State Senator (D-Windsor). Welch was the president pro tempore of the Vermont Senate.

Peter Welch (1921–20 November 1984) was a British actor who appeared in various television programmes including Dixon of Dock Green, Z Cars, Spy Trap, Softly, Softly and Doctor Who.