Dwane Casey (born April 17, 1957) is currently an assistant coach for the NBA's Dallas Mavericks.
Casey played college basketball at the University of Kentucky between 1975 and 1979. While he served as an assistant coach there, Emery Worldwide employees discovered $1,000 in cash in an envelope mailed to recruit Chris Mills, with Casey's name on it. The resulting scandal contributed to head coach Eddie Sutton's resignation and Mills' transfer to the University of Arizona.
Casey coached in Japan for five years. He then served as an assistant coach for the Seattle SuperSonics of the NBA, first under George Karl and then under Nate McMillan.
At the start of the 2005-06 NBA season, Casey was hired as the head coach of the Minnesota Timberwolves, replacing Kevin McHale, after McHale coached the Wolves for thirty-one games in the 2004-2005 season in an interim capacity following the firing of longtime Timberwolves coach Flip Saunders. Casey lasted only a season and a half in Minnesota (with an overall record of 53-69), and was fired on January 23, 2007. At that time, the Timberwolves were 20-20 and competing for a playoff spot. He was replaced by assistant Randy Wittman, who went 12-30 the rest of the season.