Olympiacos swimming club is the swimming department of the major Greek multi-sport club, Olympiacos CFP, based in Piraeus, Greece.
The club's dominating success can be further evidenced by the fact that all other Greek swimming clubs have won a combined total of 34 Greek League titles.
Olympiacos also hold the record for the most consecutive Greek League titles won, with twenty-eight (28) in a row (1996–2023), which is a record in Greek sports history.
Olympiakos swimming department holds the world record of having won at least one title in every season, for fifty-three (54) consecutive years.
Olympiacos has produced some of the greatest swimmers in Greek swimming history, such as the Olympic silver medalist, five-time Olympian, two-time World Champion, World Cup gold medalist, and two-time European Champion[1] Spyros Gianniotis, who is considered the greatest Greek swimmer of all time.