Siarka Tarnobrzeg (Polish pronunciation: [ˈɕarka tarˈnɔbʐɛk]) is a Polish sports club, from the city of Tarnobrzeg (southeastern Poland). Founded in 1957, it currently has two departments – soccer (Third Division of the Subcarpathian Voivodeship) and men's basketball (First Division). Until 1994, Siarka also owned a women's table tennis team, whichwas the Champion of Poland 16 times. In early 1990s Siarka's soccer team played in Polish First Division, with such players as Cezary Kucharski, Andrzej Kobylański, Tomasz Kiełbowicz and Mariusz Kukiełka.
- 11th spot in the Ekstraklasa: 1993
- Runner Up of the U-19 Polish Championships: 1979
- Bronze Medal in the U-19 Polish Championship: 1999
Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.
- KS Siarka Tarnobrzeg at the 90minut.pl website – Football (soccer)
- Siarka fans' webpage – Football (soccer)