Tim Grgurich (born June 10, 1942) is an American basketball coach. Grgurich served as the head coach at his alma mater, the University of Pittsburgh, for 5 seasons in the mid to late 1970s. He also served as the head coach at UNLV for the first seven games of the 1994–95 season before abruptly resigning. He arrived at UNLV in the mid–1980s, importing the amoeba defense developed when he was a Pitt assistant under Bob Timmons and Charles Ridl to Jerry Tarkanian's teams.