William Houlder (born March 11, 1967 in Thunder Bay, Ontario, Canada) is a retired Canadian professional ice hockey defenceman. He was drafted by the Washington Capitals in the fourth round, 82nd overall, of the 1985 NHL Entry Draft. After playing three seasons with the North Bay Centennials of the Ontario Hockey League, Houlder joined the Capitals during the 1987–88 season. After going back and forth between Washington and their AHL affiliate Baltimore Skipjacks for three seasons, Houlder was traded to the Buffalo Sabres before the 1990–91 season in exchange for Shawn Anderson.