Maurice "Mo" Williams (born December 19, 1982, in Jackson, Mississippi) is an American professional basketball player for the NBA's Cleveland Cavaliers. He is a 6 ft 1 in point guard from the University of Alabama.

Williams was selected by the Utah Jazz in the second round, 47th overall of the 2003 NBA Draft. He averaged five points and 1.3 assists for the Jazz in his first NBA season, then signed as a free agent with the Milwaukee Bucks.

Filling in for Bucks' injured starting point guard T. J. Ford, Williams averaged 10.2 points and 6.1 assists during the 2004-05 season. In his new role coming off of the bench for the up-and-coming Bucks team, he showed a knack for clutch plays, making several game winning shots in the 2005-06 season.