Peter John Plummer (born 28 January 1947) is a former English cricketer.
Plummer was a right-handed batsman who bowled slow left-arm orthodox.
Plummer made his first-class debut for Nottinghamshire against Warwickshire.
He made 32 further first-class appearances, the last of which came against Lancashire in the 1969 County Championship.
In the early 1990s he became the headteacher of Ellis Guilford School and Sports College Ellis Guilford School in Basford, Nottingham.