Orestis Kiomourtzoglou (born 7 May 1998) is a German footballer who plays as a midfielder for Dutch Eredivisie club Heracles Almelo.
Born in Munich, of Greek descent, he began his career as a youngster with his local club, SpVgg Unterhaching, and went on to make 94 league appearances before joining Dutch top-flight club Heracles Almelo in 2019.
Internationally, he has represented Germany at U21 level.