Marcus Darrell Williams (born December 3, 1985, in Los Angeles, California) is an American professional basketball player who currently plays for the Memphis Grizzlies in the National Basketball Association. In the 2006 NBA Draft, he was the 22nd player selected in the 1st round. Prior to joining the NBA, he played for the University of Connecticut Huskies men's basketball team.
Williams attended and played for Crenshaw High School in Los Angeles for his 9th, 10th, and 11th years, and transferred to Oak Hill Academy (Mouth of Wilson, VA) for his 12th year (2002-2003).
During his freshman year at UConn, Williams was suspended for part of the season because of poor grades.