Piraeus is a city in the Attica, Greece.
Piraeus may also refer to:
Piraeus (regional unit) in Attica region, Greece
Companies Piraeus Bank Piraeus Bank Romania Piraeus Bank Tower Bucharest Piraeus Port Authority Piraeus Container Terminal, a subsidiary of COSCO
Museums Archaeological Museum of Piraeus Municipal Art Gallery of Piraeus
Sports Olympiacos Piraeus, a multisport club and its departments: Olympiacos F.C. Olympiacos B.C. Olympiacos S.C. Olympiacos Water Polo Club Olympiacos CFP (Superleague Formula team) Ethnikos Piraeus, a multisport club and its departments: Ethnikos Piraeus F.C. Ethnikos Piraeus Water Polo Club Piraeus Football Clubs Association Athens-Piraeus Football Clubs Association
Transport Piraeus station Athens-Piraeus Electric Railway Port of Piraeus Piraeus, Athens and Peloponnese Railways Piraeus-Perama light railway Piraeus Railway Works
Other Piraeus A and Piraeus B, parliamentary constituencies Piraeus Prefecture Piraeus Lion University of Piraeus Battle of Piraeus Pireus (mythology)