The UEFA Champions League (UCL), commonly known as the Champions League, is an annual club football competition organised by the Union of European Football Associations (UEFA) that is contested by top-division European clubs. The competition begins with a round robin league phase to qualify for the two-legged knockout rounds and the single-leg final. It is the most-watched club competition in the world and the third most-watched football competition overall, after the FIFA World Cup and the UEFA European Championship. It is one of the most prestigious football tournaments in the world and the most prestigious club competition in European football, played by the national league champions (and, for some nations, one or more runners-up) of their national associations.

Introduced in 1955 as the European Champion Clubs' Cup and commonly known as the European Cup, it was initially a straight knockout tournament open only to the champions of Europe's domestic leagues, with its winner considered to be the European club champion. The competition took on its current name in 1992, adding a round-robin group stage in 1991 and allowing multiple entrants from certain countries since the 1997–98 season. While only the winners of many of Europe's national leagues can enter the competition, the top 5 leagues by coefficient provide four teams each by default, with a possibility for additional spots based on performance during the previous season. Clubs that finish below the qualifying spots are eligible for the second-tier UEFA Europa League competition, and since 2021, for the third-tier UEFA Conference League.

In its present format, the Champions League begins in early July with three qualifying rounds and a play-off round, all played over two legs. The seven surviving teams enter the league phase, joining 29 teams qualified in advance. The 36 teams each play eight opponents, four home and four away. The 24 highest-ranked teams proceed to the knockout phase that culminates with the final match in late May or early June. The winner of the Champions League automatically qualifies for the following season's Champions League, the UEFA Super Cup, the FIFA Intercontinental Cup, and the quadrennial FIFA Club World Cup.

Spanish clubs have the most victories (20 wins), followed by England (15 wins), Italy (12 wins), Germany (8 wins), Netherlands (6 wins), Portugal (4 wins) and France (3 wins). England has the most winning teams, with six clubs having won the title. The competition has been won by 24 clubs and 13 of them have won it more than once. Since the tournament changed name and structure in 1992, only two top-tier football clubs outside the Big Five European nations (Spain, England, Italy, Germany and France) have also reached the final: Porto (2003–04) and Ajax (1994–95 and 1995–96).

Real Madrid is the most successful club in the tournament's history, having won it 15 times. They are also the only club to have won it five times in a row (the first five editions). Only one club has won all of their matches in a single tournament en route to their tournament victory, Bayern Munich in the 2019–20 season. Paris Saint-Germain are the current European champions, having beaten Arsenal on penalties in the 2026 final for their second consecutive title.

History

+ WinnersEuropean Cup / UEFA Champions League Season Winners European Cup 1955–56 Real Madrid 1956–57 Real Madrid  1957–58 Real Madrid  1958–59 Real Madrid  1959–60 Real Madrid  1960–61 Benfica 1961–62 Benfica  1962–63 Milan 1963–64 Inter Milan 1964–65 Inter Milan  1965–66 Real Madrid  1966–67 Celtic 1967–68 Manchester United 1968–69 Milan  1969–70 Feyenoord 1970–71 Ajax 1971–72 Ajax  1972–73 Ajax  1973–74 Bayern Munich 1974–75 Bayern Munich  1975–76 Bayern Munich  1976–77 Liverpool 1977–78 Liverpool  1978–79 Nottingham Forest 1979–80 Nottingham Forest  1980–81 Liverpool  1981–82 Aston Villa 1982–83 Hamburger SV 1983–84 Liverpool  1984–85 Juventus 1985–86 Steaua București 1986–87 Porto 1987–88 PSV Eindhoven 1988–89 Milan  1989–90 Milan  1990–91 Red Star Belgrade 1991–92 Barcelona UEFA Champions League 1992–93 Marseille 1993–94 Milan  1994–95 Ajax  1995–96 Juventus  1996–97 Borussia Dortmund 1997–98 Real Madrid  1998–99 Manchester United  1999–2000 Real Madrid  2000–01 Bayern Munich  2001–02 Real Madrid  2002–03 Milan  2003–04 Porto  2004–05 Liverpool  2005–06 Barcelona  2006–07 Milan  2007–08 Manchester United  2008–09 Barcelona  2009–10 Inter Milan  2010–11 Barcelona  2011–12 Chelsea 2012–13 Bayern Munich  2013–14 Real Madrid  2014–15 Barcelona  2015–16 Real Madrid  2016–17 Real Madrid  2017–18 Real Madrid  2018–19 Liverpool  2019–20 Bayern Munich  2020–21 Chelsea  2021–22 Real Madrid  2022–23 Manchester City 2023–24 Real Madrid  2024–25 Paris Saint-Germain 2025–26 Paris Saint-Germain  2026–27--> The first time the champions of two European leagues met was in what was nicknamed the 1895 World Championship, when English champions Sunderland beat Scottish champions Heart of Midlothian 5–3. The first pan-European tournament was the Challenge Cup, a competition between clubs in the Austro-Hungarian Empire. Three years later, in 1900, the champions of Belgium, Netherlands and Switzerland, which were the only existing leagues in continental Europe at the time, participated in the Coupe Van der Straeten Ponthoz, thus being dubbed as the "club championship of the continent" by the local newspapers.

The Mitropa Cup, a competition modelled after the Challenge Cup, was created in 1927, an idea of Austrian Hugo Meisl, and played between Central European clubs. In 1930, the Coupe des Nations (), the first attempt to create a cup for national champion clubs of Europe, was played and organised by Swiss club Servette. Held in Geneva, it brought together ten champions from across the continent. The tournament was won by Újpest of Hungary. Latin European nations came together to form the Latin Cup in 1949.

After receiving reports from his journalists over the highly successful South American Championship of Champions of 1948, Gabriel Hanot, editor of L'Équipe, began proposing the creation of a continent-wide tournament. In interviews, Jacques Ferran (one of the founders of the European Champions Cup, together with Gabriel Hanot), said that the South American Championship of Champions was the inspiration for the European Champions Cup. After Stan Cullis declared Wolverhampton Wanderers "Champions of the World" following a successful run of friendlies in the 1950s, in particular a 3–2 friendly victory against Budapest Honvéd, Hanot finally managed to convince UEFA to put into practice such a tournament. It was conceived in Paris in 1955 as the European Champion Clubs' Cup.

1955–1967: Beginnings The first European Cup took place during the 1955–56 season. Sixteen teams participated (some by invitation): Milan (Italy), AGF Aarhus (Denmark), Anderlecht (Belgium), Djurgården (Sweden), Gwardia Warszawa (Poland), Hibernian (Scotland), Partizan (Yugoslavia), PSV Eindhoven (Netherlands), Rapid Wien (Austria), Real Madrid (Spain), Rot-Weiss Essen (West Germany), Saarbrücken (Saar), Servette (Switzerland), Sporting CP (Portugal), Reims (France) and Vörös Lobogó (Hungary).

The first European Cup match took place on 4 September 1955, and ended in a 3–3 draw between Sporting CP and Partizan. The first goal in European Cup history was scored by João Baptista Martins of Sporting CP. The inaugural final took place at the Parc des Princes between Stade de Reims and Real Madrid on 13 June 1956. The Spanish squad came back from behind to win 4–3 thanks to goals from Alfredo Di Stéfano and Marquitos, as well as two goals from Héctor Rial. Real Madrid successfully defended the trophy next season in their home stadium, the Santiago Bernabéu, against Fiorentina. After a scoreless first half, Real Madrid scored twice in six minutes to defeat the Italians. In 1958, Milan failed to capitalise after going ahead on the scoreline twice, only for Real Madrid to equalise. The final, held in Heysel Stadium, went to extra time where Francisco Gento scored the game-winning goal to allow Real Madrid to retain the title for the third consecutive season.

In a rematch of the first final, Real Madrid faced Stade Reims at the Neckarstadion for the 1959 final, and won 2–0. West German side Eintracht Frankfurt became the first team not to compete in the Latin cup to reach the European Cup final. The 1960 final holds the record for the most goals scored, with Real Madrid beating Eintracht Frankfurt 7–3 at Hampden Park, courtesy of four goals by Ferenc Puskás and a hat-trick by Alfredo Di Stéfano. This was Real Madrid's fifth consecutive title, a record that still stands today.

Real Madrid's reign ended in the 1960–61 season when bitter rivals Barcelona dethroned them in the first round. Barcelona were defeated in the final by Portuguese side Benfica 3–2 at the Wankdorf Stadium. Reinforced by Eusébio, Benfica defeated Real Madrid 5–3 at the Olympic Stadium in Amsterdam and kept the title for a second consecutive season. Benfica wanted to repeat Real Madrid's successful run of the 1950s after reaching the showpiece event of the 1962–63 European Cup, but a brace from Brazilian-Italian José Altafini at Wembley gave the spoils to Milan, making the trophy leave the Iberian Peninsula for the first time ever.

Inter Milan beat an ageing Real Madrid 3–1 at the Ernst-Happel-Stadion to win the 1963–64 season and replicate their local-rival's success. The title stayed in Milan for the third year in a row after Inter beat Benfica 1–0 at their home ground, the San Siro. Under the leadership of Jock Stein, Scottish club Celtic beat Inter Milan 2–1 in the 1967 final to become the first British club to win the European Cup. The Celtic players that day, all of whom were born within of Glasgow, subsequently became known as the "Lisbon Lions".

1968–1976 The 1967–68 season saw Manchester United become the first English team to win the European Cup, beating two-times winners Benfica 4–1 in the final. In the 1968–69 season, Ajax became the first Dutch team to reach the European Cup final, but they were beaten 4–1 by Milan, who claimed their second European Cup, with Pierino Prati scoring a hat-trick.

The 1969–70 season saw the first Dutch winners of the competition. Feyenoord knocked out the defending champions, Milan in the second round, before beating Celtic in the final. In the 1970–71 season, Ajax won the title, beating Greek side Panathinaikos in the final. The season saw a number of changes, with penalty shoot-outs being introduced, and the away goals rule being changed so that it would be used in all rounds except the final. It was also the first time a Greek team reached the final, as well as the first season that Real Madrid failed to qualify, having finished sixth in La Liga the previous season. Ajax went on to win the competition three years in a row (1971 to 1973), which Bayern Munich emulated from 1974 to 1976.

The era was characterized by the dominance of football clubs from the Netherlands and West Germany, who together won 7 back-to-back European Cups between 1970 and 1976.

1977–1997: Heysel Disaster and rebrand into Champions League

Liverpool won their first two titles in 1977 and 1978. The following seasons saw victories in 1978–79 and 1979–80 for Brian Clough's Nottingham Forest. The following year Liverpool won their third title before Aston Villa continued the sense of English dominance in 1982. In 1982–83, Hamburger SV broke the English dominance. Liverpool regained it in 1983–84 before losing to Juventus (1984–85). All English clubs were banned for five years (Liverpool for six years) following the 1985 European Cup final due to the Heysel Stadium disaster.