David "Dai" M. Davies (c. 1915 – death unknown) was a Welsh professional rugby league footballer who played in the 1930s, 1940s and 1950s. He played at representative level for Wales, and at club level for Salford, as a prop, or second-row, i.e. number 8 or 10, or 11 or 12, during the era of contested scrums.