Glyn Davidge (31 December 1933 – 18 March 2006) was a Welsh international flanker who played club rugby for Tredegar, Chepstow and Newport.
During the 1952–53 season, at the age of 18, Davidge played for Newport having previously been a member of Tredegar and Chepstow.
As an adolescent, he had shown form and had played for Wales Youth, but before he could start a second season with Newport was called up for National Service.
While at Newport he would play in the teams that faced all three great Southern Hemisphere sides, New Zealand, Australia and South Africa.
He was on the winning side against Australia (1957) and New Zealand (1963), but Newport were narrowly defeated 3–0 by the 1961 touring South Africans.