Dan O'Sullivan (basketball)
Daniel James O'Sullivan is an American retired professional basketball player and is now a substitute teacher in New Jersey.
A 6′10″, 250 lb center born in The Bronx, New York, O'Sullivan attended Fordham University. He played with the Omaha Racers of the Continental Basketball Association, and from the 1990–91 NBA season until 1996, he played with five different NBA teams: Utah Jazz, New Jersey Nets, Milwaukee Bucks, Detroit Pistons and Toronto Raptors. He has played for Washington Bullets during the 1993 pre-season. He also played with Kinder Bologna, Teamsystem Bologna and Scavolini in the Italian league, and also in Greece for AEK.