Dimitrios Katiakos, also spelled Dimitris Katiakos (born March 10, 1987 in Cholargos, Attica, Greece) is a Greek professional basketball player. He is 2.05 m (6 ft 8 ¾ in) tall and plays at the power forward position.
At the club level, Katiakos currently plays for O.F.I.
Katiakos also played with Greece's junior national teams at the FIBA Europe Under-18 Championship and at the FIBA Europe Under-20 Championship.