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.
The 2010–11 LEN Women's Champions' Cup was the 24th edition of the highest-level competition in women's European club water polo. It involved the champions and other top teams from European national leagues and ran from December 2010 to April 2011. The Final Four took place in Sabadell, Spain.
Alexandra Asimaki is a Greek water polo player considered one of the best female water polo players in the world in the 21st century.
The 2011-12 LEN Women's Champions' Cup is the ongoing 25th edition of LEN's competition for women's water polo national champion clubs. Thirteen teams from England, France, Germany, Greece, Italy, Russia, Serbia and Spain entered the competition.
A.S. Pro Recco (femminile) is an Italian professional women's water polo team from Recco representing male powerhouse Pro Recco in Serie A Femminile.
The LEN Women's Champions League, formerly known as LEN European Cup, LEN Champions Cup and LEN Euroleague Women, is the premier competition for women's water polo clubs of Europe and takes place every year. It is organized by the Ligue Européenne de Natation (LEN) and was created in 1987 as LEN European Cup.
The LEN Women's Euro Cup, formerly the Women's LEN Trophy, is LEN's second-tier competition for women's water polo clubs. It was first held in 2000 as the LEN Women's Cup Winners' Cup. It was contested for many seasons by around 15 teams, which could qualify for it either directly due to high ranking in their domestic league or by being eliminated at certain stages of the Champions' Cup. After the last reformations in the European competitions system by LEN, only four teams contesting for the trophy, coming after elimination at that season's LEN Euro League quarterfinals stage. Italy's Gifa Palermo, Ortigia, Racing Roma, Imperia, Russia's Shturm Ruza, and Greece's Ethnikos are the most successful clubs in the competition with two titles each.
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.
Olympiacos Women's Water Polo Club is the women's water polo department of the major Greek multi-sport club Olympiacos, based in Piraeus. The department was founded in 1988 and they play their games at the 1000-seated Papastrateio "Petros Kapagerof" Pool in Piraeus.
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 an association football and water polo rivalry between Ethnikos Piraeus and Olympiacos, the 2 teams representing the city of Piraeus.
The 2019 Women's LEN Super Cup was the 14th edition of the annual trophy organised by LEN and contested by the reigning champions of the two European competitions for women's water polo clubs. The match was played between CN Sabadell and Orizzonte Catania at the Centre Can Llong in Sabadell, Spain, on 26 November 2019.
The 2018–19 LEN Euro League Women was the 32nd edition of the major European tournament for women's water polo clubs. It ran from 24 January to 20 April 2019.
The 2018–19 Women's LEN Trophy was the 20th edition of the European second-tier tournament for women's water polo clubs. It was contested in Kirishi, Russia, on 12 and 13 April 2019.
The 2017–18 LEN Euro League Women was the 31st edition of the top tier European tournament for women's water polo clubs. It ran from 1 December 2017 to 21 April 2018.
The 2021–22 LEN Euro League Women is the 34th edition of the major competition for European women's water polo clubs. It started on 18 November 2021.
The 2022–23 LEN Women's Champions League is the 35th edition of the major competition for European women's water polo clubs. It starts on 17 November 2022.
The 2023–24 LEN Women's Champions League is the 36th edition of the water polo competition organised by the Ligue Européenne de Natation (LEN). This is the first season under the new changes made by LEN. The defending champions are Astralpool Sabadell.
The 2023–24 LEN Champions League is the 61st edition of LEN's premier competition for men's water polo clubs. Because of the congested schedule, there's a new format this year. Pro Recco are the three time defending champions.
2023 LEN Women's Super Cup 
Sabadell 
