The Georgios Karaiskakis Stadium, commonly referred to as the Karaiskakis Stadium, is a football stadium in Piraeus, Attica, Greece, and the home ground of the Piraeus football club Olympiacos. It is named after Georgios Karaiskakis, a military commander and national hero of the Greek War of Independence, who was mortally wounded in the area.

Olympiacós Sýndesmos Filáthlon Peiraiós is a major multi-sport club based in Piraeus, Greece. Olympiacos is parent to a number of different competitive departments which participate in football, basketball, volleyball, water polo, handball, athletics, swimming, table tennis and boxing amongst many others—and have won numerous European and domestic titles over the club's history.