William Islwyn "Izzy" Davies (20 March 1912[2] – 1997[3]) was a Welsh professional rugby league footballer who played in the 1930s.
He played at representative level for Wales, and at club level for St. Helens and Warrington, as a wing or centre.
[1][4][5] Izzy Davies was born in Merthyr Tydfil, Wales, and he died in Warrington, Cheshire, England.
Izzy Davies played on the wing, and scored a goal for Wales while at St. Helens in the 11-24 defeat by England at Anfield, Liverpool on Wednesday 10 April 1935.
[1] Izzy Davies held Warrington's "Most Tries In A Season" record with 34 tries scored during the 1938–39 Northern Rugby Football League season, the 34th try coming against Oldham on Saturday 29 April 1939,[6] this record was extended by Brian Bevan.