Jeffrey Hunter Plympton
- Bats Right, Throws Right
- Height 6' 2", Weight 205 lb.
- School University of Maine
- High School King Philip High School
- Debut June 15, 1991
- Final Game September 16, 1991
- Born November 24, 1965 in Framingham, MA USA
Jeff Plympton was 2-1 with a 1.06 ERA in the 1986 Amateur World Series, finishing 4th in the event in ERA. Overall that summer, he was 7-2 with a 3.10 ERA for Team USA, tying Mike Remlinger for the most wins.