Donald James Hayward (30 June 1925 – 16 February 1999) was a Welsh international prop who played club rugby for Newbridge and Wigan RLFC. He won 15 caps for Wales, and was selected to play in the British Lions on the 1950 tour of Australia and New Zealand. Hayward is considered to be one of the finest forwards to represent Wales in the early post-war period. He was an excellent lineout specialist and was an aggressive mauler in the loose. Hayward was also an extremely strong tackler and played with total conviction.