Klub Sportowy Zakładów Ostrowieckich also known as KSZO Ostrowiec Świętokrzyski was founded in 1929. On formation the club began playing in the C klasa and by 1934 it was boosted up to the top regional leagie, the A klasa. The football club currently plays in the III Liga. The team plays its home matches at the Miejski Stadion Sportowy "KSZO".
