Arthur T. Williams (born September 29, 1939 in Bonham, Texas) is an American former professional Basketball player.

A 6'1" Guard (basketball) from California State Polytechnic University, Pomona, Williams played seven seasons (1967-1974) in the National Basketball Association as a member of the San Diego Rockets and Boston Celtics. He averaged 5.3 Points per game in his career and won an NBA Championship with Boston in 1974.

Williams also played briefly with the San Diego Conquistadors of the American Basketball Association in 1974-1975.