Olympiacos CFP

Olympiacós Sýndesmos Filáthlon Peiraiós (Greek: Ολυμπιακός Σύνδεσμος Φιλάθλων Πειραιώς, lit. 'Olympic Association of Friends-of-sports of Piraeus') 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. Olympiacos has also completed various doubles, trebles and quadruples.

Nicknamed Thrylos (Legend) and Gavros (Anchovy), Olympiacos SFP is traditionally considered an anti-systemic club representing the working classes of Piraeus and fighting against the system and Athenian aristocracy represented by Panathinaikos.

Olympiacos is the most successful and decorated multi-sports club in Europe, having surpassed Barcelona in 2024 and being the only Greek club, as well as one of the few European multi-sport clubs to have won as many as 23 International titles –including 21 major European titles, 1 Intercontinental title and 1 Balkan title– in six sports (Football, Basketball, Volleyball, Water Polo, Wrestling, Table Tennis) (no other Greek club have won more than nine European titles). Additionally, by also counting all friendly tournaments and minor and unofficial titles, Olympiacos had 700 trophies in 1962, which have increased since then. Overall, Olympiacos is the most successful Greek multi-sport club in terms of International titles won (23), European titles won (21), European Championships won (9), participations in European and International finals (50 –23 times Champions, 27 times Runners-up–) and the only Greek multi-sport club to have won European titles in four different team sports (football, basketball, volleyball, water polo). They have won European titles with nine of their sports departments (men's football, youth football, men's basketball, men's volleyball, women's volleyball, men's water polo, women's water polo, men's wrestling, men's table tennis) while no other multi-sport club in Greece has more than three European title-winning sports departments.

Specifically, Olympiacos Men's Football Team have won 1 UEFA Europa Conference League (2024) and 1 Balkans Cup (1963), Olympiacos Youth Football Team have won 1 UEFA Youth League (2024), Olympiacos Men's Basketball Team have won 3 EuroLeagues (1997, 2012, 2013) and 1 FIBA Intercontinental Cup (2013), Olympiacos Men's Volleyball Team have won 2 CEV Cups (1996, 2005) and 1 CEV Challenge Cup (2023), Olympiacos Women's Volleyball Team have won 1 CEV Challenge Cup (2018), Olympiacos Men's Water Polo Team have won 2 LEN Champions Leagues (2002, 2018) and 1 LEN Super Cup (2002), Olympiacos Women's Water Polo Team have won 3 LEN Euro Leagues (2015, 2021, 2022), 1 LEN Trophy (2014) and 3 LEN Super Cups (2015, 2021, 2022), Olympiacos Men's Wrestling Team has won 1 CELA Cup (2006) and Olympiacos Men's Table Tennis Team have won 1 ETTU Europe Trophy (2023). In total, Olympiacos departments (Football, Basketball, Volleyball, Water Polo, Handball, Wrestling, Table Tennis) have reached 50 times the final (23 times Champions, 27 times Runners-up) of the most prestigious and important European and Worldwide competitions, which is an all-time record for a Greek multi-sport club.

Olympiacos FC is also the only club in European football to have won two UEFA trophies in a single season, having won the UEFA Europa Conference League title with its Senior Team and the UEFA Youth League title with its Youth Team in the same year (2024).

Olympiacos is the most popular Greek club with around four million fans inside Greece and millions of others in the Greek communities all over the world. As of April 2006, Olympiacos has 83,000 registered members and is placed in the top ten of the clubs with the most paying members in the world, holding the ninth place just ahead of Real Madrid. In 2014, that figure increased and the team boasts 98,000 registered members. Olympiacos CFP was the first Greek club that made it possible for its fans to become members, and granted them the right of voting for the board of directors.