Billy Wynyard

William "Billy" T. Wynyard was a New Zealand rugby football player who was part of the professional rugby league 1907–08 New Zealand rugby tour of Australia and Great Britain. He was the brother of Richard Wynyard.

Wynyard was from a sporting family that included three uncles that were part of the 1888–89 New Zealand Native football team that conducted a rugby union tour of Great Britain. One of these three, Tabby Wynyard, went on to represent New Zealand on their 1893 tour of Australia. Richard followed the family tradition, becoming a noted rugby player and a civil servant clerk by trade.

Living in Devonport, Wynyard was part of the North Shore Rugby Club. He won Auckland selection later than his brother Richard did, but by 1907 was firmly established in the Auckland side.

Wynyard was selected to be part of the professional All Blacks 1907–08 tour of Australia and Great Britain. He was one of the last two players selected, along with Charlie Dunning, and joined the squad late during the first Australian leg of the tour. Wynyard became a valuable member of the squad, scoring six tries, however injury meant he had to wait until the squad returned to Australia to make his test debut, playing in the first ever trans-Tasman test which was the debut match of the Australia national rugby league team. He played in all three test matches against Australia.