Derek Lamar Fisher is an American professional basketball coach and former player who spent 18 seasons in the National Basketball Association (NBA). He is best known for his time with the Los Angeles Lakers, where he won five NBA championships between 2000 and 2010. Fisher also played for the Golden State Warriors, Utah Jazz, Oklahoma City Thunder, and Dallas Mavericks. During his playing career, he served as president of the National Basketball Players Association (NBPA).