A1 Ethniki Water Polo

The A1 Ethniki (Template:Langx), often referred to as the Greek Water Polo League, is the highest professional water polo league in Greece. It is run by the Hellenic Swimming Federation. It is considered one of the top national leagues in European water polo, as its clubs have made significant success in European competitions.

Olympiacos Piraeus has conquered the most Greek League titles, with 39. Ethnikos also has the record for consecutive championships, with 18.

History

• 1923-27: Panhellenic Championship (held by SEGAS)
• 1927–28 to 1965-66: Panhellenic Championship (held by Hellenic Swimming Federation)
• 1966–67 to 1985-86: A Ethniki (held by Hellenic Swimming Federation)
• 1986–87 to present: A1 Ethniki (held by Hellenic Swimming Federation)

Title holders

• 1922–23 Wycombe Wanderers footie flag Peiraikos
• 1925–26 File:Five blue four white striped flag.png Ethnikos Piraeus
• 1926–27 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus
• 1927–28 Giallo e Nero Aris Aris Thessaloniki
• 1928–29 Giallo e Nero Aris Aris Thessaloniki (2)
• 1929–30 Giallo e Nero Aris Aris Thessaloniki (3)
• 1930–31 File:Five blue four white striped flag.png Ethnikos Piraeus (2)
• 1931–32 Giallo e Nero Aris Aris Thessaloniki (4)
• 1932–33 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (2)
• 1933–34 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (3)
• 1934–35 600px Bianco Con Striscia Blu NO Patras
• 1935–36 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (4)
• 1936–37 600px Bianco Con Striscia Blu NO Patras (2)
• 1937–38 600px Bianco Con Striscia Blu NO Patras (3)
• 1938–39 600px Bianco Con Striscia Blu NO Patras (4)
• 1939–40 600px Bianco Con Striscia Blu NO Patras (5)
• 1941–44 Not held due to WW II
• 1944–45 600px Bianco Con Striscia Blu NO Patras (6)
• 1945–46 600px Bianco Con Striscia Blu NO Patras (7)
• 1946–47 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Pireaus (5)
• 1947–48 File:Five blue four white striped flag.png Ethnikos Piraeus (3)
• 1948–49 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (6)
• 1949–50 600px Bianco Con Striscia Blu NO Patras (8)
• 1950–51 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (7)
• 1951–52 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (8)
• 1952–53 File:Five blue four white striped flag.png Ethnikos Piraeus (4)
• 1953–54 File:Five blue four white striped flag.png Ethnikos Piraeus (5)
• 1954–55 File:Five blue four white striped flag.png Ethnikos Piraeus (6)
• 1955–56 File:Five blue four white striped flag.png Ethnikos Piraeus (7)
• 1956–57 File:Five blue four white striped flag.png Ethnikos Piraeus (8)
• 1957–58 File:Five blue four white striped flag.png Ethnikos Piraeus (9)
• 1958–59 File:Five blue four white striped flag.png Ethnikos Piraeus (10)
• 1959–60 File:Five blue four white striped flag.png Ethnikos Piraeus (11)
• 1960–61 File:Five blue four white striped flag.png Ethnikos Piraeus (12)
• 1961–62 File:Five blue four white striped flag.png Ethnikos Piraeus (13)
• 1962–63 File:Five blue four white striped flag.png Ethnikos Piraeus (14)
• 1963–64 File:Five blue four white striped flag.png Ethnikos Piraeus (15)
• 1964–65 File:Five blue four white striped flag.png Ethnikos Piraeus (16)
• 1965–66 File:Five blue four white striped flag.png Ethnikos Piraeus (17)
• 1966–67 File:Five blue four white striped flag.png Ethnikos Piraeus (18)
• 1967–68 File:Five blue four white striped flag.png Ethnikos Piraeus (19)
• 1968–69 File:Five blue four white striped flag.png Ethnikos Piraeus (20) &
  630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (9)
• 1969–70 File:Five blue four white striped flag.png Ethnikos Piraeus (21)
• 1970–71 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (10)
• 1971–72 File:Five blue four white striped flag.png Ethnikos Piraeus (22)
• 1972–73 File:Five blue four white striped flag.png Ethnikos Piraeus (23)
• 1973–74 File:Five blue four white striped flag.png Ethnikos Piraeus (24)
• 1974–75 File:Five blue four white striped flag.png Ethnikos Piraeus (25)
• 1975–76 File:Five blue four white striped flag.png Ethnikos Piraeus (26)
• 1976–77 File:Five blue four white striped flag.png Ethnikos Piraeus (27)
• 1977–78 File:Five blue four white striped flag.png Ethnikos Piraeus (28)
• 1978–79 File:Five blue four white striped flag.png Ethnikos Piraeus (29)
• 1979–80 File:Five blue four white striped flag.png Ethnikos Piraeus (30)
• 1980–81 File:Five blue four white striped flag.png Ethnikos Piraeus (31)
• 1981–82 File:Five blue four white striped flag.png Ethnikos Piraeus (32)
• 1982–83 File:Five blue four white striped flag.png Ethnikos Piraeus (33)
• 1983–84 File:Five blue four white striped flag.png Ethnikos Piraeus (34)
• 1984–85 File:Five blue four white striped flag.png Ethnikos Piraeus (35)
• 1985–86 600px Blu e Bianco dolphin ANO Glyfada
• 1986–87 600px Blu e Bianco dolphin ANO Glyfada (2)
• 1987–88 File:Five blue four white striped flag.png Ethnikos Piraeus (36)
• 1988–89 600px Blu e Bianco dolphin ANO Glyfada (3)
• 1989–90 600px Blu e Bianco dolphin ANO Glyfada (4)
• 1990–91 600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni
• 1991–92 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (11)
• 1992–93 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (12)
• 1993–94 File:Five blue four white striped flag.png Ethnikos Piraeus (37)
• 1994–95 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (13)
• 1995–96 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (14)
• 1996–97 600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni (2)
• 1997–98 600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni (3)
• 1998–99 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (15)
• 1999–00 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (16)
• 2000–01 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (17)
• 2001–02 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (18)
• 2002–03 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (19)
• 2003–04 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (20)
• 2004–05 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (21)
• 2005–06 File:Five blue four white striped flag.png Ethnikos Piraeus (38)
• 2006–07 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (22)
• 2007–08 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (23)
• 2008–09 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (24)
• 2009–10 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (25)
• 2010–11 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (26)
• 2011–12 600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni (4)
• 2012–13 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (27)
• 2013–14 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (28)
• 2014–15 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (29)
• 2015–16 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (30)
• 2016–17 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (31)
• 2017–18 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (32)
• 2018–19 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (33)
• 2019–20 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (34)
• 2020–21 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (35)
• 2021–22 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (36)
• 2022–23 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (37)
• 2023–24 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (38)
• 2024–25 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus (39)

Titles by club

No.	Club	Winners	Winning years
1.	630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus	39	1927, 1933, 1934, 1936, 1947, 1949, 1951, 1952, 1969*, 1971, 1992, 1993, 1995, 1996, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
2.	File:Five blue four white striped flag.png Ethnikos Piraeus	38	1926, 1931, 1948, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969*, 1970, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1988, 1994, 2006
3.	600px Bianco Con Striscia Blu NO Patras	8	1935, 1937, 1938, 1939, 1940, 1945, 1946, 1950
4.	Giallo e Nero Aris Aris Thessaloniki	4	1928, 1929, 1930, 1932
5.	600px Blu e Bianco dolphin ANO Glyfada	4	1986, 1987, 1989, 1990
6.	600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni	4	1991,1997, 1998, 2012
7.	Wycombe Wanderers footie flag Peiraikos	1	1923

* The 1969 Championship was shared between Olympiacos and Ethnikos

Consecutive championships

18 in a row

• File:Five blue four white striped flag.png Ethnikos Piraeus→1953–1970

14 in a row

• File:Five blue four white striped flag.png Ethnikos Piraeus→1972-1985

13 in a row

• 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus→2013–2025

9 in a row

• 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus→1999–2005

6 in a row

• 600px Bianco Con Striscia Blu NO Patras→1937–1946

5 in a row

• 630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus→2007–2011

3 in a row

• Giallo e Nero Aris Aris Thessaloniki→1928–1930

2 in a row

• 630px seven vertical stripes HEX-ED1C24 and White Olympiacos→1933–1934, 1951–1952, 1992–1993, 1995–1996

• 600px Blu e Bianco dolphin ANO Glyfada→1986–1987, 1989–1990

• 600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni→1997–1998

Appearances in A' Ethniki (1967―2025)

A' Ethniki (National Division) started in 1967, but the Greek championship started in 1923 as a Panhellenic Championship. The Hellenic Swimming Federation declares all championship winning teams as champions from 1928 and onwards. Teams in bold participate in the 2024–25 season.

App Club 59 File:630px seven vertical stripes HEX-ED1C24 and White.svg Olympiacos S.F. Piraeus 57 File:Five blue four white striped flag.png Ethnikos O.F. Piraeus 50 File:Blu Con Striscia Bianca.svg Chios Nautical Club 47 File:Verde con trifoglio Verde su cerchio Bianco.svg Panathinaikos Athens 46 File:600px Bianco con striscia Blu centrale.svg NO Patras 45 File:600px Bianco Blu e Rosso diagonale con ancora Dorata.png Vouliagmeni Nautical Club 45 File:600px Blu e Bianco dolphin.png Glyfada Athletic Nautical Club 37 File:600px Blu e Giallo Strisce.svg Palaio Faliro Athletic Club 30 File:600px Bianco con aquila bicefala nera.png P.A.O.K. Thessaloniki 29 File:Sports flag icons - Yellow blue white.svg Chania Nautical Club 25 File:600px diagonal HEX-0000FF background HEX-E60607.svg Panionios G.S.S. (Athens) 16 File:Sports flag icons - Blue with white H.svg Iraklis Thessaloniki

App Club 16 File:600px HEX-FF0000 background HEX-0000FF cross with crosslet.svg Kerkyra Nautical Athletic Club 14 File:600px Blu e Bianco diagonale.svg Volos - Argonaftes Nautical Club 13 File:600px Blu Rosso e Bianco (Diagonale).png Kalamaki Nautical Club 11 File:Red and light-blue rectangle.svg Ydraikos Nautical Club 10 File:Giallo e Nero Aris.JPG Aris Thessaloniki 8 File:Celeste e Bianco.svg O.F. Thalassis Thessaloniki 8 File:600px Blu Bianco e Blu2.svg Apollon Smyrnis 7 File:Bianco e Celeste2.svg Chalcis Nautical Club 7 File:Sports flag icons - Yellow with black H.svg Ilisiakos Athletic Club Athens 6 File:600px chequered Blue HEX-002D68 HEX-619EFB.svg Poseidon Ilision SC (Athens) 6 File:600px Bianco e Blu (Quadrati).png NE Patras 6 File:600px Piccione.png Peristeri Gymnastic Club

App Club 5 File:600px Blu e Bianco (Strisce Orizzontali)2.png E.N.O. Egyptioton Athens 5 File:600px Giallo con aquila bicefala nera2 svg.png A.E.K. Athens 3 File:600px diagonal divided HEX-FF0000.svg Argostoli Nautical Club 3 File:600px Blu Arancio e Bianco.svg Nireas Chalandri Athletic Club 3 File:600px White V on HEX-004E8E background.svg Mytilene Nautical Club 3 File:600px HEX-FFFF00 background HEX-0000FF star.svg G.N.O. Aris Nikaias 3 File:600px vertical White HEX-FF8A00.svg Larissa Nautical Club 2 File:600px Blu e Giallo Strisce.svg Nireas Lamia Gymnastic Club 2 File:600px upper Red HEX-FF0000 lower Blue HEX-0E3091 with White stripe.svg Ilioupolis Gymastic Club (Athens) 2 File:600px Blu e Bianco diagonale.svg O.Y.K. Volos 1 File:600px diagonal right Black on White background.svg O.F.I. (Heraklion) 1 File:600px Blu Bianco e Blu (1).png Phoenix Piraeus

Greek clubs in European competitions

Club		Champions League					Euro Cup					Cup Winners' Cup (defunct)					Super Cup
		C	Years	RU	SF		C	Years	RU	SF		C	Years	RU	SF		C	Years	RU
630px seven vertical stripes HEX-ED1C24 and White Olympiacos Piraeus		2	2002,2018	3	1		–					0		2			1	2002	1
File:Five blue four white striped flag.png Ethnikos Piraeus		0		0	1		0		0	1		0		0			–
600px Bianco Blu e Rosso diagonale con ancora Dorata NO Vouliagmeni		0		0	1		0		1	2		1	1997	0	1		–
Rosso e Blu (Diagonale) Panionios		0		0	0		0		2	2		–					–
600px Bianco Con Striscia Blu NO Patras		–					0		1	0		–					–

External links

• Hellenic Swimming Federation Template:In lang
• Eleftherotypia
• Star Channel
• Novasport Fm