Ajax was founded in
Amsterdam on 18 March 1900. The club achieved promotion to the highest level of Dutch football in 1911 and had its first major success in 1917, winning the
KNVB Beker, the Netherlands' national cup. The
following season, Ajax became
national champion for the first time. The club defended its title in
1918–19, becoming the only team to achieve an unbeaten season in the Netherlands Football League Championship. Throughout the 1920s, Ajax was a strong regional power, winning the Eerste Klasse West division in 1921, 1927 and 1928, but could not maintain its success at the national level. This changed in the 1930s, with the club winning five national championships (
1931,
1932,
1934,
1937,
1939), making it the most successful Dutch team of the decade. Ajax won its second KNVB Cup in 1942–43, and an eighth Dutch title in
1946–47, the last season the club was managed by Englishman
Jack Reynolds, who, up to this point, had overseen all of its national championship successes as well as its 1917 KNVB Cup win. In 1956, the
first season of the Netherlands' new professional league, the , was played with Ajax participating as a founding member. The Amsterdam club became the first national champions under the new format and made its debut in the
European Champion Clubs' Cup the
following year, losing to Hungarian champions 6–2 on aggregate at the quarter-final stage. The team was again champions in
1960 and won a third KNVB Cup in 1961. played at Ajax from 1959 to 1973, and from 1981 to 1983, winning 3 European Cups; his No. 14 is the only squad number Ajax has ever retired. Cruyff came back to manage the club from 1985 to 1988. In 1965,
Rinus Michels, who had played for the club between 1946 and 1958, was appointed manager of Ajax, implementing his philosophy of
Total Football which was to become synonymous with both Ajax and the
Netherlands national team. A year earlier,
Johan Cruyff, who would go on to become widely regarded as the greatest Dutch footballer of all time, made his debut. Between them, Michels and Cruyff led Ajax through the most successful period in its history, winning seven titles, four KNVB Cups and three
European Cups. Ajax won the Dutch championship in
1966,
1967 and
1968, and reached the
1969 European Cup final, losing to
Milan. During the 1966–67 season, Ajax scored a record 122 goals in an season and also won the KNVB Cup to achieve its first league and cup
double. In
1969–70, Ajax won a fourth Dutch league championship and second league and cup double in five seasons, winning 27 out of 34 league matches and scoring 100 goals. The
1970–71 season saw Ajax retain the
KNVB Cup and reach the
1971 European Cup final, where they defeated 2–0 with goals from
Dick van Dijk and
Arie Haan to become continental champions for the first time, with Cruyff being named
European Footballer of the Year. After this success, Michels departed to become manager of
Barcelona and was replaced by the Romanian
Ștefan Kovács. In Kovács' first season, Ajax completed a
treble of the
European Cup, the and a third consecutive
KNVB Cup. The following season, the team beat Argentine to win the
1972 Intercontinental Cup and retained their and
European Cup titles, becoming the first club to win three consecutive European Cups since
Real Madrid in the 1950s. In 1973, Michels' Barcelona broke the
world transfer record to bring Cruyff to the
Catalan team. Kovács also departed to become manager of the
France national team, signalling the end of this period of international success. In
1976–77, Ajax won its first domestic championship in four seasons and recorded a double of the and
KNVB Cup two years later. The early 1980s saw the return of Cruyff to the club, as well as the emergence of young players
Marco van Basten and
Frank Rijkaard. The team won back-to-back titles in
1982 and
1983, with all three playing a significant role in the latter. After Cruyff's sale to rivals in 1983, van Basten became Ajax's key player, top scoring in the for four seasons between
1983–84 and
1986–87. and
Rijkaard, returned as manager in 1985. In 1985, Cruyff returned to Ajax as manager and the team ended
his first season in charge with 120 goals from 34 matches. However, Ajax still finished as runner-up to
PSV by eight points. The following season, Ajax again lost out on the Eredivisie title to PSV, but won the
European Cup Winners' Cup, its first continental trophy in 14 years. After this, Cruyff left the club to become manager of Barcelona and Rijkaard and van Basten were sold to
Sporting CP and Milan respectively. Despite these losses, Ajax reached a second consecutive Cup Winners' Cup final in
1988, where they lost to Belgian club . The
1988–89 season saw
Dennis Bergkamp, a young forward who had first appeared under Cruyff in 1986, establish himself as a regular goalscorer for Ajax. Bergkamp helped Ajax to the title and was the top scorer in the division in
1990–91,
1991–92 and
1992–93. Under the management of
Louis van Gaal, Ajax won the
UEFA Cup in
1992 to become the second club, after , to have won all three
major European club competitions. After the sale of Bergkamp to in 1993, van Gaal re-signed the experienced Rijkaard to complement his young Ajax team featuring academy graduates
Frank and
Ronald de Boer,
Edwin van der Sar,
Clarence Seedorf,
Edgar Davids,
Michael Reiziger and
Winston Bogarde, as well as mercurial foreign talents
Finidi George,
Nwankwo Kanu and
Jari Litmanen, and veteran captain
Danny Blind. The team regained the Dutch championship in
1993–94, and won it again in
1994–95 and
1995–96 to become the first Ajax side to win three back-to-back championships since 1968. The height of van Gaal's success came in 1994–95, where Ajax became the first, and to date only, team to complete an entire season unbeaten. The team also won its first European Cup since its 1970s era, defeating Milan in the
1995 UEFA Champions League final 1–0, with the winning goal scored by 18-year-old
Patrick Kluivert. Ajax again reached
the final one year later, and was defeated on penalties by . Ajax's return as a European force was short-lived, as van Gaal and several members of the squad soon departed to some of the continent's biggest clubs. The 2000s was a lean decade for the club, with only two championships won. However, Ajax's academy continued to produce star players such as
Wesley Sneijder and
Rafael van der Vaart. In 2010, Frank de Boer was appointed manager of Ajax and led the club to its first league title in seven years, and record 30th title overall, in the
2010–11 season. This was followed by back-to-back wins in
2011–12 and
2012–13 to match his three consecutive titles as a player in the 1990s. In
2013–14, Ajax was again champions, winning four consecutive league titles for the first time in club history. After finishing as runner-up to PSV in both
2014–15 and
2015–16, de Boer resigned as Ajax head coach in May 2016.
Peter Bosz took over the club and led them to the
2017 UEFA Europa League final, their first European final in 21 years. They lost to
Manchester United with a lineup that was the youngest ever in a European final, averaging an age of 22 years and 282 days. For the third consecutive season, they finished runner-up in the , this time to . The
2018–19 season for Ajax involved a remarkable run in the
UEFA Champions League. Due to their runner-up finish in the
2017–18 Eredivisie, Ajax entered the tournament in the second qualifying round. After successive victories against
Sturm Graz, and , they qualified for the group stage. Ajax was drawn in a group with German champions
Bayern Munich, Portuguese side
Benfica and Greek champions
AEK Athens. Ajax finished runner-up in this group, qualifying for the knockout stages, where it was drawn against three-time defending champions
Real Madrid. After losing 1–2 in the first leg, they defeated Real Madrid 4–1 in the away match, stunning the defending champions in their own stadium, the
Santiago Bernabéu, with an aggregate score of 5–3.
Dušan Tadić was awarded a perfect score of 10 by following the match. in
UEFA Champion League 2019-2020 Thus, Ajax progressed to the quarter-finals and was drawn with Italian champions . In the first leg in the
Johan Cruyff Arena, they drew 1–1. In the second leg at the
Juventus Stadium, Ajax came from behind to win 2–1 and 3–2 on aggregate.
Matthijs de Ligt scored the winning goal for Ajax to help the team advance to its first Champions League semi-final since
1997. There, they would face English side
Tottenham Hotspur. In the first leg of the semi-final, Ajax beat Tottenham 1–0 away from home. In the second leg, Ajax scored twice in the first half to generate a 3–0 lead on aggregate. However, in the second half,
Lucas Moura scored three times, including in the 6th minute of added time, resulting in Ajax losing via the
away goals rule. Ajax was in first place on goal difference when the was declared void, preventing them being Dutch champions for the 35th time, but still qualified for the
2020–21 UEFA Champions League. In this, it was eliminated again, but in 2021 it reached the quarter-finals of the Europa League. It was eliminated against AS Roma. That season, it again won both the national title and the KNVB Cup. In the
2021-22 season, Ajax again became champion of the Netherlands. It had to give up the KNVB Cup and the Johan Cruijff Shield to competitor PSV because it came out on the losing end in both finals. In European terms, Ajax achieved first place in the Champions League group, all six matches were won, mostly by a wide margin. After the winter break, Ajax was narrowly eliminated in the eighth finals by the Portuguese Benfica Lisboa (Lisbon) (2–2 away, 0–1 at home). As of 1 July 2022,
Alfred Schreuder succeeded Erik ten Hag, who left for Manchester United, as Ajax's coach. Most of the key players from previous seasons left during the summer transfer period, but there was also a lot of reinvestment. Ajax started the 2022/23 season relatively well with six consecutive victories in the Eredivisie. But Ajax was eliminated from the Champions League quite quickly in a group with Liverpool, Napoli and Rangers. At home against Napoli on 4 October 2022, they even lost by 5 goals (1–6), Ajax's biggest defeat ever in European competition. After seven consecutive matches without a win, head coach Alfred Schreuder was dismissed.
John Heitinga succeeded Schreuder as interim manager. Under Heitinga, Ajax failed to turn things around despite a good start, with seven wins in a row. Ajax finished third in the Eredivisie, behind champions Feyenoord and runners-up PSV. This was the club's lowest ranking since the 2008/09 season, in which it also finished third. After the winter break, Ajax was eliminated in the first knockout phase of the Europa League by Union Berlin (3–1). Ajax did reach the final of the KNVB Cup, but lost to PSV on penalties (3–2). On 19 May 2023,
Sven Mislintat took over as Ajax's sports director. He succeeded Marc Overmars, who left in early 2022. Mislintat appointed
Maurice Steijn as head coach. Mislintat spent approximately 111 million euros on transfers. Ajax had its worst start to the season in fifty-nine years. On 29 October 2023, Ajax reached a historic low. Ajax lost 5–2 to PSV in Eindhoven. This put Ajax in last place, 18th place in the Eredivisie, for the first time since the club was founded. The position of director Mislintat became an embarrassment after it emerged that he had arranged a transfer through a player agent who was an investor in his company. In the evening of 24 September, Mislintat was fired with immediate effect; among other things, a lack of broad support within the club was one of the reasons. A day after the loss against PSV, it was announced that
John van 't Schip would become the head coach until the end of the season. Under the leadership of Van 't Schip, Ajax managed to climb to fifth place in the Eredivisie. In the Europa League, Ajax finished third, which meant a place in the next season's Conference League, where it eventually lost to Aston Villa in the round of 16. In the cup, Ajax was eliminated 3–2 by the third division amateurs of USV Hercules. In the summer of 2024, a rebuild began, with a new board of directors and
Alex Kroes and
Marijn Beuker as Technical Director and Director of Football. They hired
Francesco Farioli as new head coach, the first foreign coach since 1998. Under his leadership, Ajax reached the league phase of the Europa League, where it finished eleventh. On 9 February 2025, Ajax finished the weekend on the first place for the first time since November 2022. Ajax would end the season second to PSV, despite being nine points clear of their rivals with five matches to go. Due to the late collapse that cost them the title and escalating tensions over transfers, tactics and finances, Farioli decided to leave Ajax on 19 May 2025.
UEFA ranking ==Academies==