William Terrence Orban (born September 10, 1939 in Regina, Saskatchewan) is a retired Canadian professional ice hockey forward who played 114 games in the National Hockey League for the Chicago Black Hawks and Minnesota North Stars.
He played junior hockey for the Saskatoon Quakers from 1962 to 1964. Turning pro in 1964, he played for the Fort Wayne Komets in 1964-65 and the Los Angeles Blades in 1965-66. He was the WHL Leading Rookie in 1965-66.
Orban was called up to the Chicago Blackhawks in 1967 and played parts of two seasons there. In February, 1969, he was traded to the Minnesota North Stars where he stayed until the end of the 1969-70 season.
From 1970 to 1975 Orban played exclusively in the minor pros, despite being obtained by the Los Angeles Kings and later the Blackhawks again. A serious leg injury in November, 1972, almost ended his career.
He played in 114 NHL games, scoring 8 goals and 15 assists.