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.
Olympiacos Men's Waterpolo, commonly referred to as Olympiacos, Olympiacos Piraeus or with its full name as Olympiacos CFP, is the professional men's water polo department of the major Greek multi-sport club, Olympiacos CFP, based in Piraeus, Greece. The department was founded in 1925, one of the founding members of the Hellenic Swimming Federation, and their home ground is the Papastrateio Pool in Piraeus.
Camila Hermeto Pedrosa-Freire is a female water polo player from Brazil, who twice won a bronze medal with the Brazil women's national water polo team at the Pan American Games: 1999 and 2003. She also competed at the 2007 Pan American Games, finishing in fourth place.
Alexandra Asimaki is a Greek water polo player considered one of the best female water polo players in the world in the 21st century.
Josip Pavić is a Croatian water polo player who competed in the 2008, 2012 and 2016 Summer Olympics, winning the gold medal in 2012 and the silver in 2016. He was widely regarded as the best goalkeeper in the 2012 Olympic tournament. He was named the best world water polo player in 2012, by FINA.
Ioannis Thomakos is a Greek water polo player who competed in the 2000 Summer Olympics, the 2004 Summer Olympics and the 2008 Summer Olympics with the Greece men's national water polo team. He was part of the national squad that won the silver medal at the 1997 World Cup in Athens. and the Bronze Medal in the 2004 World League in Long Beach.
Gerasimos "Makis" Voltirakis is a Greek retired water polo player and current water polo coach. Voltirakis was a member of Greece men's national water polo team from 1991 to 1997, with whom he competed in the 1992 Summer Olympics and in the 1996 Summer Olympics. He was part of the Greece men's national water polo team that won the silver medal at the 1997 World Cup in Athens, being voted the tournament's best goalkeeper.
Ioannis Fountoulis is a Greek professional water polo player. He is currently the captain of Greece men's national water polo team, with whom he won a bronze medal at the 2015 World Championships, a bronze medal at the 2016 World League, 2020 World League and competed at the 2012 and 2016 Olympics. He played for the Greek powerhouse Olympiacos since 2009, and in 2018 he won the 2017–18 LEN Champions League with the Greek giants, scoring 4 goals in the final game against Pro Recco in Genoa. Is a very big scorer and leader is considered one of the top players in the world and it is typical how in 2016 and 2018 he was voted as the second top player in the world. Currently playing for the Greek club Olympiacos.
The Greek Women's Water Polo A1 League is the premier championship for women's water polo teams in Greece. It was founded in 1988, and it is currently contested by twelve teams. Greek League is ranked as one of the top national domestic leagues in European water polo. The champion, the runner-up and the third-placed team qualify for the LEN Euro League.
Eleftheria Plevritou is a Greek water polo player for Olympiacos Water Polo Club and the Greece women's national team. She was part of the Greece women's national water polo team that won the silver medal at the 2018 European Championship in Barcelona. She is considered as one of the best female players in water polo.
Alkisti Avramidou is a female Greek former water polo player.
Triantafyllia Manolioudaki is a Greek water polo player, captain of the Greek powerhouse Olympiacos and key member of the Greece women's national water polo team.
Margarita Plevritou is a Greek water polo player for Olympiacos and the Greece women's national team. She was part of the Greek team that won the silver medal at the 2018 European Championship in Barcelona.
Chrysoula "Chrysi" Diamantopoulou is a Greek former water polo player, who played as a goalkeeper mailnly for Olympiacos and the Greece women's national team. She was part of the Greek team that won the silver medal at the 2018 European Championship in Barcelona and the sixth place at the 2015 World Aquatics Championships. She is considered as one of the best goalkeeper in the world.
Theodoros "Thodoris" Vlachos is a retired Greek water polo player and the current coach of the Greece men's national water polo team. He was named the Greek Coach of the Year, for the years 2021 and 2023.
Roberta Bianconi is an Italian water polo player. She was part of the Italian team that won the silver medal at the 2016 Olympics and the bronze medal at the 2015 World Championships.
The Piraeus derby, is a traditional association football and water polo rivalry between Ethnikos Piraeus and Olympiacos, the 2 teams representing the city of Piraeus, Greece. Ethnikos was founded on November 21, 1923, while Olympiacos was founded on March 10, 1925. The two teams are one of the most successful multi sports clubs in Greece in terms of honours, with Olympiacos being the team with the most titles in the five biggest team sports, while Ethnikos being fifth.
Stylianos "Stelios" Argyropoulos-Kanakakis is a Greek water polo player, who is a member of Greece men's national water polo team. He is part of Greece national team that competes at the 2017 World Aquatics Championships in Budapest. He started his career in Ethnikos, a club with great tradition in water polo. He was named best rookie of the Greek championship in 2015 and 2016. He then played for Greek powerhouse Olympiacos, with whom he won the 2017–18 LEN Champions League, 2 Greek Championships and 1 Greek Cup. He is currently a player of Ferencvárosi TC.
Arsenis Maroulis is a retired Greek water polo player and water polo coach, currently coaching G.S. Peristeriou. Maroulis played for Greek powerhouse Olympiacos with whom he won the 2001–02 LEN Champions League in Budapest, being also runner-up of the 2000–01 LEN Champions League in Dubrovnik.
Dimitrios "Dimitris" Nikolaidis is a Greek water polo player, who is a member of Greece men's national water polo team. He is part of Greece national team that competes at the 2018 European Water Polo Championship in Barcelona. He plays for Italian team Brescia, Nikolaidis won the 2017–18 LEN Champions League with Olympiacos in Genoa
Michalis Kountouris 
