FC Baník Ostrava is a football club from the Silesian part of the city of Ostrava, Czech Republic. It is based in Slezská Ostrava district of the city.

Founded in 1922 as SK Slezská Ostrava, Baník is one of the most traditional clubs in the country - it has won numerous national and international trophies. Their home stadium is Bazaly, and club colours are blue and white. Baník's greatest rivals are Sparta Prague; with a regional "Silesian derby" taking place with SFC Opava. In 2005 however SFC Opavawas relegated from the Gambrinus liga. Currently, there is a friendship between the supporters of Baník and GKS Katowice from the Silesian region of Poland.