Diamantis Slaftsakis (Greek: Διαμαντής Σλαφτσάκης; born July 27, 1994) is a Greek professional basketball player for PAOK of the Greek Basket League and the Basketball Champions League. He is 2.02 m (6 ft 7 1⁄2 in) tall. He can play at both the small forward and power forward positions.