Dimitrios Katiakos (alternate spelling: Dimitris) (born March 10, 1987, in Cholargos, Attica, Greece) is a Greek former professional basketball player. At a height of tall, he played at the power forward and center positions.
At the club level, some of the teams that Katiakos played with included: Esperos Kallitheas, Panionios, Ikaros Kallitheas-Esperos, Arkadikos, Promitheas Patras, and Peristeri.
Katiakos also played with Greece's junior national teams at the FIBA Europe Under-18 Championship, and at the FIBA Europe Under-20 Championship.