Konstantinos "Kostas" Tsartsaris (Greek: Κωνσταντίνος "Κώστας" Τσαρτσαρής; born October 17, 1979 in Veria, Greece), is a retired Greek professional basketball player and coach, who spent most of his playing career with the Greek League team Panathinaikos. At 6 ft 10 3⁄4 in (2.10 m) tall and 115.4 kg (255 lb.) in weight, he played at the mainly at the power forward position, but he could also play at the center position if needed.