|No. 21 – Cambridge|
|Born||February 20 2000|
|Listed height||6 ft 1 in (1.85 m)|
Adrian Jamal Williams (born February 20, 2000) is an American basketball player who attends Cambridge Rindge and Latin School in Cambridge, Massachusetts. He is the younger brother of current NBA player Michael Carter-Williams.
Williams is the son of Earl and Rosa Williams and has an older brother Michael, who plays for the Charlotte Hornets. He plays basketball at Cambridge Rindge and Latin School in Cambridge, Massachusetts.