KS Cracovia, founded on 13 June 1906, is regarded as the oldest continuously existing sports club in Poland, a claim contested only by its great rival Wisła Kraków, established the same year. From the outset the team adopted white-and-red stripes echoing the national flag — a gesture with patriotic weight while Poland was still partitioned — giving rise to the enduring nickname Pasy ("The Stripes").
Cracovia have won the Polish championship five times, in 1921, 1930, 1932, 1937 and 1948; the first of these, secured under the old cup-style format, is regarded as the very first Polish football title. Among the players credited with that early success was Józef Kałuża, a forward for the club between 1912 and 1931 who later coached the Polish national team from 1932 to 1939, the most successful spell before Kazimierz Górski's era; a street beside the club's stadium now bears his name.
The stadium itself, on ulica Józefa Kałuży, carries the name of Marshal Józef Piłsudski, Poland's head of state, who once said it was Cracovia that first drew him to sport.
The club's oldest and fiercest rivalry, the so-called Holy War against Wisła Kraków, remains one of Polish football's defining fixtures. More recently Cracovia added the Polish Cup (2019–20) and Polish Super Cup (2020–21) to its honours, earning the club its first appearances in European competition.