Peter Richard James Marsh (born 12 May 1951) is a British former field hockey player who competed at the 1972 Summer Olympics.
Marsh was born in Dover, England and educated at Millfield School. He chose to compete for Wales and made his debut aged just 18.
He lived in Redditch and represented Staffordshire at county level.
Marsh primarily played club hockey for Harborne Hockey Club. While at Harborne he competed in the men's tournament at the 1972 Olympic Games in Munich
He was selected for the Great Britain team for the 1980 Olympic Games in Moscow, but subsequently did not attend due to the boycott.