Konstantinos Polychroniou, better known as Kostas Polychroniou, was a Greek professional football player and manager.

Olympiacos F.C., known simply as Olympiacos or Olympiacos Piraeus, is a Greek professional football club based in Piraeus. Part of the major multi-sport club Olympiacos CFP, their name was inspired from the ancient Olympic Games and along with the club's emblem, the laurel-crowned Olympic athlete, symbolize the Olympic ideals of ancient Greece. Their home ground is the Karaiskakis Stadium, a 33,334-capacity stadium in Piraeus.