William "Bill" Sanderson Coulthard (December 29, 1923 - December 18, 2005)[1] born in Buffalo, New York, USA) was a Canadian basketball player who competed in the 1952 Summer Olympics.
Coulthard was a member of the Tillsonburg Livingstons basketball team which won the Senior Canadian Championships in 1952 and made up the bulk of the 1952 Canadian Olympic basketball team in Helsinki [2]. The Canadian basketball team was eliminated after the group stage in the 1952 tournament. He played all six matches.