Ligue Européenne de Natation or LEN (trans: European Swimming League) is the European governing body for aquatic sports affiliated to FINA—it is the Continental Association for Europe. It was formally organized in 1927 in Bologna, Italy, and since 2015 is headquartered in Nyon.
LEN comprises 52 national swimming federations in Europe, and includes Israel which for Olympic-sport purposes is grouped with Europe. LEN is overseen by an elected Bureau (board) composed of Members representing 17 different Federations. LEN oversees aquatic sports in Europe: diving, swimming, open water swimming, synchronized swimming and water polo.
LEN runs various competitions within Europe, these are:
- European Aquatics Championships (held in even years; includes swimming, diving, synchronized swimming and open water swimming)
- European Water Polo Championship (run every second year)
- European Short Course Swimming Championships (run every year, from 2015 run every second year)
- European Masters Swimming Championships (run every odd year until 2013 and every even year from 2016)
- European Open Water Championships (run every second year)
- European Junior Swimming Championships (run every year)
LEN also runs various Cups in swimming and water polo as well as meets for junior swimmers.
The following national federations are part of LEN:
- Albania – Albanian Swimming Federation
- Andorra – Federació Andorrana de Natació
- Armenia – Association of Water Kind of Sports of the Republic of Armenia
- Austria – Österreichischer Schwimmverband (OSV)
- Azerbaijan – Azerbaijan Swimming Federation
- Belarus – Swimming Federation of Belarus
- Belgium – Fédération Royale Belge de Natation
- Bosnia and Herzegovina – Swimming Federation of Bosnia and Herzegovina
- Bulgaria – Bulgarian Swimming Federation / Българска федерация по плувни спортове
- Croatia – Croatian Swimming Federation
- Cyprus – Cyprus Amateur Swimming Association
- Czech Republic – Czech Swimming Federation (CŠPS) / Český svaz plaveckých sportů
- Denmark – Dansk Svømmeunion
- Estonia – Estonian Swimming Federation / Eesti Ujumisliit
- Faroe Islands – Svimjisamband Føroya
- Finland – Suomen Uimaliitto
- France – Fédération Française de Natation
- Georgia – Georgian Aquatic Sports National Federation
- Germany – Deutscher Schwimm-Verband (DSV)
- Gibraltar – Amateur Swimming Association of Gibraltar
- Great Britain – British Swimming
- Greece – Hellenic Swimming Federation / Κολυμβητική Ομοσπονδία Ελλάδος (KOE)
- Hungary – Magyar Úszó Szövetség (MÚSZ)
- Iceland – Icelandic Swimming Association
- Ireland – Swim Ireland
- Israel – Israel Swimming Association
- Italy – Federazione Italiana Nuoto (FIN)
- Kosovo – Kosovo Swimming Federation
- Latvia – Latvijas Peldēšanas Federācija
- Liechtenstein – Liechtenstein Swimming Association
- Lithuania – Lithuanian Swimming Federation / Lietuvos plaukimo federacija (LPF)
- Luxembourg – Federation Luxembourgeoise de Natation et de Sauvetage
- Macedonia – Swimming Federation of Republic of Macedonia
- Malta – Aquatic Sports Association of Malta
- Moldova – Water Kind of Sports Federation of the Republic of Moldova
- Monaco – Federation Monegasque de Natation
- Montenegro – Water Polo and Swimming Federation of Montenegro
- Netherlands – Koninklijke Nederlandse Zwembond (KNZB)
- Norway – Norges Svømmeforbund
- Poland – Polski Związek Pływacki
- Portugal – Federação Portuguesa de Natação
- Romania – Federaţia Română de Nataţie şi Pentatlon Modern
- Russia – All Russian Swimming Federation
- San Marino – San Marino Swimming Federation
- Serbia – Plivački Savez Srbije
- Slovakia – Slovenská Plavecká Federácia (SPF) / Slovak Swimming Federation
- Slovenia – Plavalna Zveza Slovenije
- Spain – Real Federación Española de Natación (RFEN)
- Sweden – Svenska Simförbundet
- Switzerland – Schweizerischer Schwimmverband (SSCHV)
- Turkey – Turkish Swimming Federation / Türkiye Yüzme Federasyonu
- Ukraine – Ukrainian Swimming Federation / Федерація плавання України
- About LEN page from the LEN website (http://len.eu); retrieved 2012-03-05.
- History of LEN page of the LEN website; retrieved 2012-03-05.
- member list of the European Olympic Committees (EOC); retrieved 2012-03-05.
- (Danish) Historien "History" page from the Danish Swimming Union's website (www.svoem.dk); retrieved 2012-03-05.
- "Kosovo Swimming Federation admitted into FINA". Tanjug.
- "Nuoto: Kosovo aderisce a Fina".