List of unbeaten football club seasons
This is a list of unbeaten football club seasons.
Unbeaten seasons
Africa
| Season | Nation | Club | Notes | ||
| 1975-76 |  | Al Ahly Sporting Club | 23 | No | |
| 1978-79 | | Al Ahly Sporting Club | 22 | No | |
| 1980-81 | | Zamalek Sporting Club | 26 | No | Finished in second place |
| 1985-86 | | Al Ahly Sporting Club | 22 | No | |
| 1991 |  | Canon Yaoundé | 29 | No | |
| 1991 |  | ASEC Mimosas | 30 | No | |
| 1991 |  | Kampala Capital City Authority FC | 19 | No | |
| 1998-99 | | Al Ahly Sporting Club | 26 | No | |
| 1998 |  | Espérance Sportive de Tunis | 28 | No | |
| 1999–2000 | | Espérance Sportive de Tunis | 22 | No | |
| 1999–2000 |  | Mbabane Highlanders F.C. | 22 | No | |
| 2001-02 | | Ismaily SC | 26 | No | |
| 2003–04 |  | Accra Hearts of Oak S.C. | 30 | No | Finished in second place |
| 2004 | | ASEC Mimosas | 26 | No | |
| 2003–04 | | Zamalek Sporting Club | 26 | No | |
| 2004–05 | | Al Ahly Sporting Club | 26 | No | |
| 2005–06 | | Al Ahly Sporting Club | 26 | No | |
| 2006 |  | AS Mangasport | 26 | No | |
| 2006 |  | CF Os Balantas | 22 | No | |
| 2007 |  | Al Hilal Educational Club | 22 | No | |
| 2007–08 |  | Mochudi Centre Chiefs FC | 30 | No | |
| 2007–08 |  | Saint George S.C. | 24 | No | |
| 2007–08 |  | Al-Ittihad Sport, Cultural & Social Club | 30 | No | |
| 2008-09 |  | ASFA Yennenga | 26 | No | |
| 2009 |  | ASC Linguère | 18 | No | |
| 2010-11 |  | Atlético Olympic FC | 22 | No | |
| 2012 |  | CSMD Diables Noirs | 29 | No | Lost in the play-off final |
| 2013 |  | Sporting Praia Cruz | 18 | No | |
| 2014-15 | | AS Mangasport | 24 | No | |
| 2015 |  | Gor Mahia F.C. | 30 | No | |
| 2015-16 |  | Tout Puissant Mazembe | 32 | No | |
| 2015-16 |  | Mogadishu City Club | 18 | No | |
| 2016-17 | | Al Ahly Sporting Club | 34 | No | |
| 2016-17 |  | LISCR FC | 22 | No | |
| 2016-17 | | Mbabane Swallows F.C. | 22 | No | |
| 2017 |  | JS Saint-Pierroise | 26 | No | |
| 2017 |  | Al Hilal Educational Club | 34 | No | |
| 2017-18 | | Mbabane Swallows F.C. | 26 | No | |
| 2018-19 | | Al-Merrikh SC | 21 | No | |
| 2018-19 |  | Clube Desportivo 1º de Agosto | 30 | No | |
| 2019 |  | East End Lions | 24 | No | |
| 2019 | | LPRC Oilers | 22 | No | |
| 2019-20 | | AS Otohô | 22 | No |
Asia
Europe
MilanUnder manager Fabio Capello, Milan went undefeated throughout all of their 34 matches in the league to capture the 1991–92 Serie A, and went unbeaten between 1991 and 1993, an Italian record of 58 league matches in total.
Arsenal
Arsenal won the 2003-04 Premier League title, finishing undefeated under manager Arsene Wenger, and went unbeaten for a total of 49 consecutive matches in the league between 2003 and 2004.
Celtic
Celtic completed the domestic 2016–17 season unbeaten in 47 league and cup games, winning the Scottish Premiership, Scottish Cup and Scottish League Cup for an unprecedented unbeaten domestic Treble under manager Brendan Rodgers. Their domestic unbeaten run continued into the 2017–18 season and eventually reached 69 games, before they lost 4–0 to Hearts on 17 December 2017.
Table
| Season | Nation | Club | Notes | - | ||
| 1888–89 |  | Preston North End | 22 | Yes | Also won 1888–89 FA Cup Became known as The Invincibles | |
| 1897–98 |  | Celtic | 18 | Yes | - | |
| 1898–99 | | Rangers | 18 | Yes | Won all 18 matches | |
| 1913–14 |  | MTK | 18 | No | Also won 1913–14 Magyar Kupa | |
| 1917–18 | | MTK | 22 | No | - | |
| 1926–27 |  | Belfast Celtic | 22 | No | - | |
| 1928–29 | | Belfast Celtic | 26 | No | - | |
| 1929–30 |  | Athletic Bilbao | 18 | No | Also won 1930 Copa del Rey | - |
| 1931–32 |  | Real Madrid | 18 | No | - | |
| 1931–32 | | Ferencváros | 22 | No | Won all 22 matches | - |
| 1933–34 |  | Union Saint-Gilloise | 26 | No | - | |
| 1937 |  | Tirana | 18 | No | - | |
| 1942–43 |  | Dresdner SC | 23 | No | Won all 18 matches in the regional Gauliga Sachsen and 5 in the 1943 German football championship | - |
| 1948–49 |  | Levski Sofia | 18 | No | Also won 1949 Bulgarian Cup | - |
| 1949–50 |  | Malmö | 22 | No | - | |
| 1950 |  | Hajduk Split | 18 | Yes | - | |
| 1951 |  | Dinamo Tirana | 26 | No | Also won 1951 Albanian Cup | - |
| 1952 |  | Honved | 26 | No | - | |
| 1954 | | Partizani Tirana | 22 | No | - | |
| 1955 | | Dinamo Tirana | 30 | No | - | |
| 1958–59 |  | Wiener Sport-Club | 26 | No | - | |
| 1963–64 |  | Panathinaikos | 30 | No | - | |
| 1963–64 | | Partizani Tirana | 22 | No | Also won 1963–64 Albanian Cup | - |
| 1966 |  | Vasas | 26 | No | - | |
| 1972–73 |  | Benfica | 30 | Yes | - | |
| 1977–78 | | Benfica | 30 | Yes | Did not win league title | - |
| 1978–79 |  | Perugia | 30 | No | Did not win league title | - |
| 1980–81 | | Glentoran | 22 | No | - | |
| 1984–85 |  | Omonia | 26 | No | - | |
| 1985–86 |  | Galatasaray | 36 | Yes | Did not win league title | - |
| 1986–87 |  | Steaua București | 34 | No | Also won 1986–87 Cupa României | - |
| 1987–88 | | Steaua București | 34 | No | Also won 1987–88 Cupa României | - |
| 1988–89 | | Steaua București | 34 | No | Also won 1988–89 Cupa României | - |
| 1991–92 |  | Dinamo București | 34 | Yes | - | |
| 1991–92 | | Milan | 34 | Yes | - | |
| 1991–92 | | Beşiktaş | 30 | Yes | - | |
| 1992–93 |  | Vardar | 34 | Yes | Also won 1992–93 Macedonian Football Cup | - |
| 1992–93 |  | Norma | 22 | No | - | |
| 1993 |  | Ararat Yerevan | 28 | No | Also won 1993 Armenian Cup | - |
| 1993–94 |  | Maccabi Haifa F.C | 39 | Yes | - | |
| 1994 | | Shirak | 28 | No | - | |
| 1994 |  | Skonto | 22 | No | - | |
| 1994–95 |  | Ajax | 34 | Yes | Also won 1994–95 UEFA Champions League | - |
| 1994–95 | | Vardar | 30 | Yes | Also won 1994–95 Macedonian Football Cup | - |
| 1994–95 | | Flora | 24 | No | Also won 1994–95 Estonian Cup | - |
| 1995 | | Skonto | 18 | No | - | |
| 1995–96 | | Pyunik | 22 | No | Also won 1995–96 Armenian Cup | - |
| 1995–96 |  | Sileks | 28 | No | - | |
| 1995–96 | | APOEL | 26 | No | Also won 1995–96 Cypriot Cup | - |
| 1995–96 |  | Widzew Łódź | 34 | No | - | |
| 1997 | | Skonto | 24 | No | - | |
| 1998–99 |  | Partizan | 24 | Yes | - | |
| 1999–2000 |  | Dynamo Kyiv | 30 | No | Also won 1999–2000 Ukrainian Cup | - |
| 2001–02 | | Shakhtar Donetsk | 26 | No | Also won 2001–02 Ukrainian Cup | - |
| 2003 | | Flora | 28 | No | - | |
| 2003–04 | | Arsenal | 38 | Yes | Became known as The Invincibles | - |
| 2004–05 |  | Partizan | 30 | Yes | - | |
| 2005–06 | | Apollon Limassol | 26 | No | - | |
| 2006–07 | | Dynamo Kyiv | 30 | No | Also won 2006–07 Ukrainian Cup | - |
| 2006–07 |  | FC Sheriff | 36 | No | - | |
| 2007–08 |  | Red Star Belgrade | 33 | No | Did not win league title | - |
| 2007–08 |  | CSKA Sofia | 30 | Yes | - | |
| 2007–08 | | Anorthosis Famagusta | 32 | No | - | |
| 2009–10 |  | Sparta Prague | 30 | No | - | |
| 2009–10 | | Partizan | 30 | Yes | - | |
| 2009–10 |  | Lincoln Red Imps | 18 | No | Also won Rock Cup | - |
| 2010 |  | Rosenborg | 30 | No | - | |
| 2010–11 | | Porto | 30 | Yes | Also won 2010–11 UEFA Europa League Also won 2010–11 Taça de Portugal | - |
| 2010–11 | | Lincoln Red Imps | 20 | No | Also won Rock Cup | - |
| 2010–11 |  | Valletta | 28 | No | - | |
| 2011–12 | | Juventus | 38 | Yes | - | |
| 2011–12 |  | Debrecen | 30 | No | Also won 2011–12 Magyar Kupa | - |
| 2011–12 | | Lincoln Red Imps | 20 | No | - | |
| 2012–13 | | Porto | 30 | Yes | - | |
| 2014–15 |  | Dinamo Zagreb | 36 | No | Also won 2014–15 Croatian Cup | |
| 2014 |  | Stjarnan | 22 | No | - | |
| 2016–17 | | Celtic | 38 | Yes | Also won 2016–17 Scottish Cup Also won 2016–17 Scottish League Cup | - |
| 2018 | | Nõmme Kalju | 36 | No | - | |
| 2018–19 |  | PAOK | 30 | Yes | Also won 2018–19 Greek Football Cup | - |
South America
| Season | Nation | Club | Notes | ||
| 1907 |  | Alumni | 20 | No | |
| 1915 | | Racing Club | 24 | No | |
| 1917 |  | Nacional | 18 | No | |
| 1918 | | Racing Club | 19 | No | |
| 1925 | | Racing Club | 24 | No | |
| 1926 | | Independiente | 25 | No | |
| 1949 | | Peñarol | 18 | No | |
| 1954 | | Peñarol | 18 | No | |
| 1964 | | Peñarol | 18 | No | |
| 1967 | | Peñarol | 18 | No | |
| 1968 | | Peñarol | 18 | No | |
| 1975 | | Peñarol | 22 | No | |
| 1977 |  | Atlético Mineiro | 21 | No | Did not win league title |
| 1978 | | Peñarol | 22 | No | |
| 1979 | | Internacional | 23 | No |