Ralph Martin Treuel
- Bats Right, Throws Right
- Height 6' 4", Weight 220 lb.
- High School Elyria High School
Ralph Treuel pitched nine seasons in the minor leagues, with two full years at AAA. He was 14-12 in AAA, 13-9 in AA, 23-20 in A ball and 3-2 in Rookie ball for a composite 53-43 record as a pro, but never made the majors.
Treuel was pitching coach of the 1995 Tigers and the Trenton Thunder in 1996 and 1998. He managed the GCL Red Sox in 2003-2005 and was pitching coach for the last month of the season for the 2006 Red Sox. When Bob Kipper was promoted to the big league staff in 2015, Treuel replaced him as pitching coach of the Pawtucket Red Sox.