Joan Plaza Durán (born 26 December 1963) is a Spanish professional basketball coach, who currently serves as head coach of Zenit St-Peterburg of the VTB United League.
He trained Real Madrid Baloncesto for three years, winning one Liga ACB championship, and an ULEB Cup (now called EuroCup) title.
In 2009, after a bad season, he was replaced in Real Madrid, by CSKA Moscow's successful coach, Ettore Messina.