|Number of teams||16|
|Relegation to||Polish First League|
|Levels on pyramid||1|
|Domestic cup(s)||Polish Cup
|International cup(s)||Champions League, Europa League|
|Current champions||Wisła Kraków (12th title)|
|Most championships||Górnik Zabrze, Ruch Chorzów (14 titles)|
The Ekstraklasa is a Polish professional league for football clubs. At the top of the Polish football league system, it is the country's primary football competition. It is contested by 16 clubs, operating a system of promotion and relegation with the Polish First League (Orange Liga). The Ekstraklasa season starts in late July, and ends in May the following year, teams play a total of 30 games each. The Ekstraklasa (former I liga) was formed as Liga Piłki Nożnej (LPN) on 1 March 1927 in Warsaw, but Polish Championships as non-league competition and The Polish Football Federation PZPN (Polski Związek Piłki Nożnej) had been organized on 20 December 1919 in Warsaw, a year after the independence of Poland in 1918. First, historic games of the freshly created League took place on April 3, 1927.
A total of 78 clubs have played in the top division of polish football since the founding of the league in 1921, of which, 17 clubs have won the title. Only 4 clubs (Polonia Warszawa, Legia Warszawa, Wisła Kraków and Zagłębie Lubin) have won the title in the last decade. The current champions are Wisła Kraków, who won their 12th title in 2008–09.
Several clubs have been involved in a corruption scandal and were/are in danger of relegation:
Three matches weekly - usually Friday evening, Saturday and Sunday - are telecast nationally by Canal+ Sport of Poland. Since the 2008-09 season, the remaining matches will be broadcast on Orange Sport. Telewizja Polska has the rights to air live 4 games per season on a non scrambled channel. 
1921-1926, 1946, 1947 non league champions
² Not held due to the 1924 Summer Olympics
|14||Górnik Zabrze||1957, 1959, 1961, 1963, 1964, 1965, 1966, 1967, 1971, 1972, 1985, 1986, 1987, 1988|
|14||Ruch Chorzów||1933, 1934, 1935, 1936, 1938, 1951, 1952, 1953, 1960, 1968, 1974, 1975, 1979, 1989|
|12||Wisła Kraków||1927, 1928, 1949, 1950, 1978, 1999, 2001, 2003, 2004, 2005, 2008, 2009|
|8||Legia Warsaw||1955, 1956, 1969, 1970, 1994, 1995, 2002, 2006|
|5||Cracovia Kraków||1921, 1930, 1932, 1937, 1948|
|5||Lech Poznań||1983, 1984, 1990, 1992, 1993|
|4||Widzew Łódź||1981, 1982, 1996, 1997|
|4||Pogoń Lwów||1922, 1923, 1925, 1926|
|2||Polonia Warsaw||1946, 2000|
|2||Zagłębie Lubin||1991, 2007|
|2||ŁKS Łódź||1958, 1998|
|2||Stal Mielec||1973, 1976|
|2||Polonia Bytom||1954, 1963|
|2||Warta Poznań||1929, 1947|
Bold indicates clubs currently playing in the top division.
The following table lists the Polish football champions by the Polish voivodeship regions.
||Górnik Zabrze (14), Ruch Chorzów (14), Polonia Bytom (2), Szombierki Bytom (1)|
||Wisła Kraków (12), Cracovia Kraków (5), Garbarnia Kraków (1)|
||Legia Warsaw (8), Polonia Warsaw (2)|
||Lech Poznań (5), Warta Poznań (2)|
||Widzew Łódź (4), ŁKS Łódź (2)|
||Zagłębie Lubin (2), Śląsk Wrocław (1)|
||Stal Mielec (2)|
In European Football teams are especially honored for winning multiple league titles, after 10 league titles a representative golden star is placed above the teams badge to indicate 10 league titles. Ruch Chorzów became the first Polish team to achieve this prestigious honor of winning the league for the 10th time in 1968. Four years later in 1972, Górnik Zabrze matched this achievement by winning its 10th title. Most recently Wisła Kraków has been dubbed by this honor winning their 10th league title in 2005.
The current (as of August 2008) officially-sanctioned Ekstraklasa stars are: