Slovan Bratislava is the most successful football club in Slovakia, founded on 3 May 1919 as I. ČSŠK Bratislava. It took its current name, together with its sky-blue-and-white colours, in 1953, which gave rise to the nickname Belasí (the Sky Blues). For decades the club was tied to the Tehelné pole ground; after the old stadium was demolished in 2013 and a spell at Pasienky, a modern 22,500-capacity arena — also serving as Slovakia's national stadium — was opened on the same site in 2019.
The defining moment in the club's history came on 21 May 1969, when Slovan beat FC Barcelona 3–2 in the European Cup Winners' Cup final at the St. Jakob Stadium in Basel, with goals from Ľudovít Cvetler, Vladimír Hrivnák and Ján Čapkovič. It remains one of the biggest shocks in the history of European club competition — Slovan, coached by Michal Vičan, had gone into the match as clear underdogs against the Catalan giants. To this day it is the only European trophy won by a club from Czechoslovakia or Slovakia, and Slovan became the first club from the Eastern Bloc to win a UEFA-organised competition.
During the Czechoslovak era Slovan won the national title eight times, competing mainly with Sparta Prague and Spartak Trnava for supremacy. Since the independent Slovak league was formed in 1993, the club has dominated domestic football: in May 2026 it claimed its sixteenth Slovak championship, an eighth in a row, a national record. Slovan also holds the record for the most Slovak Cup wins.
That dominance has kept the club a regular in European group-stage football, with recent opponents including Milan, Celtic and Borussia Dortmund — a continuity that, alongside the memory of 1969, keeps Slovan recognisable on the continental stage even as the overall strength of the Slovak league has diminished compared to earlier decades.