William Vojtek (born 29 September 1943) is a retired Australian footballer. He migrated to Australia with his family as a child in 1956 and started playing for Essendon Juniors before representing Victoria from the under 13s to under 18s. Vojtek played the majority of his career with Croatia (Melbourne) and is now the coach of the Melbourne Knights U/16 squad located in Sunshine Melbourne. In 2010 Vojtek was presented with recognition of 50 years of service to the Melbourne Knights. Vojtek was selected in the Melbourne Knights Team of the Century as the number 9, the team's other striker was Mark Viduka.