Konstantinos Polychroniou (Greek: Κώστας Πολυχρονίου; 12 November 1936 – 1 June 2018[2]), better known as Kostas Polychroniou, was a Greek professional football player and manager.

Born in Platanistos, Euboea, Polychroniou's family moved to Athens when he was six months old.

[3] Polychroniou is considered as one-club man spending his entire career playing for the Greek giants Olympiacos F.C.

[3][4] making 305 appearances in Alpha Ethniki and a total of 662 caps in all competitions (also including 239 friendly games).

[5] He managed AEL, Rodos, Doxa Drama, Apollon Smyrni, Levadiakos, Olympiacos, Greece,[6] Ionikos, Paniliakos.