Robert James Allen (born July 17, 1946) is an American basketball player during the 1960s.

Allen played collegiately for Marshall University.

He was selected by the San Francisco Warriors in the sixth round (71st pick overall) of the 1968 NBA draft.

He played in 27 games in the National Basketball Association (NBA) for the Warriors (1968–69 season).

This biographical article relating to a United States basketball player, coach, or other figure born in the 1940s is a stub.