Treble (association football)
A treble in association football is achieved when a club team wins three trophies in a single season. A continental treble involves winning the club's national league competition, main national cup competition, and main continental trophy. A domestic treble involves winning three national competitions—normally the league title, the primary cup competition, and one secondary competition.
Continental trebles
This list includes clubs who have won their country's top-tier league and the primary cup competition, in addition to the major continental tournament, all within a single season. This was first achieved in 1967 by Celtic, winning the Scottish Football League, Scottish Cup, and European Cup. They also won the Scottish League Cup that year, making them the only team in history to win the domestic treble and the European Cup.Of men's football, seven European clubs have achieved the feat since 1967. FC Barcelona is the only club to have won this treble twice. Cruz Azul is the only Mexican team to have won a continental treble, having achieved it twice in 1969 and 1997.
No South American team has achieved the feat with the above stipulations, with clubs in its most successful nations hampered by the absence of a major domestic knockout cup: the Copa do Brasil only began in 1989, and the Copa Argentina began in 2011; Uruguay still does not have one. In 1962, Brazil's Santos won the Copa Libertadores, the Taça Brasil, and the Campeonato Paulista. In 2019, Flamengo achieved a similar feat by capturing the Copa Libertadores, Campeonato Brasileiro Série A, and Campeonato Carioca.
| Confederation | Club | Country | Season | Titles won |
| AFC | Yomiuri |  Japan | 1987 | Japanese First Division, Emperor's Cup, Asian Club Championship |
| AFC | Tokyo Verdy Beleza |  Japan | 2019 | Nadeshiko League, Empress's Cup, AFC Women's Club Championship |
| CAF | Englebert |  DR Congo | 1967 | Linafoot, Coupe du Congo, African Cup of Champions |
| CAF | Vita Club |  Zaire | 1973 | Linafoot, Coupe du Congo, African Cup of Champions |
| CAF | MC Algiers |  Algeria | 1976 | Algerian Championnat National, Algerian Cup, African Cup of Champions |
| CAF | Hearts of Oak |  Ghana | 2000 | Ghana Premier League, Ghanaian FA Cup, CAF Champions League |
| CAF | Al Ahly |  Egypt | 2005–06 | Egyptian League, Egypt Cup, CAF Champions League |
| CAF | Al Ahly | Egypt | 2006–07 | Egyptian League, Egypt Cup, CAF Champions League |
| CAF | Espérance |  Tunisia | 2011 | Tunisian Ligue Professionnelle 1, Tunisian Cup, CAF Champions League |
| CONCACAF | Cruz Azul |  Mexico | 1969 | Mexican Primera División, Copa México, CONCACAF Champions' Cup |
| CONCACAF | Defence Force |  Trinidad and Tobago | 1985 | TT Pro League, Trinidad and Tobago Cup, CONCACAF Champions Cup |
| CONCACAF | Cruz Azul | Mexico | 1997 | Mexican Primera División, Copa México, CONCACAF Champions' Cup |
| OFC | Auckland City |  New Zealand | 2005–06 | NZFC Minor Premiership, NZFC Grand Final, OFC Champions League |
| OFC | Waitakere United | New Zealand | 2007–08 | NZFC Minor Premiership, NZFC Grand Final, OFC Champions League |
| OFC | Auckland City | New Zealand | 2013–14 | NZFC Minor Premiership, NZFC Grand Final, OFC Champions League |
| OFC | Auckland City | New Zealand | 2014–15 | NZFC Minor Premiership, NZFC Grand Final, OFC Champions League |
| OFC | Hienghène Sport |  New Caledonia | 2019 | New Caledonia Super Ligue, New Caledonia Cup, OFC Champions League |
| UEFA | Celtic |  Scotland | 1966–67 | Scottish Football League, Scottish Cup, European Cup |
| UEFA | Ajax |  Netherlands | 1971–72 | Eredivisie, KNVB Cup, European Cup |
| UEFA | PSV Eindhoven | Netherlands | 1987–88 | Eredivisie, KNVB Cup, European Cup |
| UEFA | Manchester United | England | 1998–99 | Premier League, FA Cup, UEFA Champions League |
| UEFA | Arsenal |  England | 2006–07 | FA Women's Premier League, FA Women's Cup, UEFA Women's Cup |
| UEFA | Frankfurt |  Germany | 2007–08 | Frauen-Bundesliga, DFB-Pokal Frauen, UEFA Women's Cup |
| UEFA | Barcelona |  Spain | 2008–09 | La Liga, Copa del Rey, UEFA Champions League |
| UEFA | Internazionale |  Italy | 2009–10 | Serie A, Coppa Italia, UEFA Champions League |
| UEFA | Lyon |  France | 2011–12 | Division 1 Féminine, Coupe de France féminine, UEFA Women's Champions League |
| UEFA | Bayern Munich | Germany | 2012–13 | Bundesliga, DFB-Pokal, UEFA Champions League |
| UEFA | Wolfsburg | Germany | 2012–13 | Frauen-Bundesliga, DFB-Pokal Frauen, UEFA Women's Champions League |
| UEFA | Barcelona | Spain | 2014–15 | La Liga, Copa del Rey, UEFA Champions League |
| UEFA | Lyon | France | 2015–16 | Division 1 Féminine, Coupe de France féminine, UEFA Women's Champions League |
| UEFA | Lyon | France | 2016–17 | Division 1 Féminine, Coupe de France féminine, UEFA Women's Champions League |
| UEFA | Lyon | France | 2018–19 | Division 1 Féminine, Coupe de France féminine, UEFA Women's Champions League |