Do you mean college courses given in the English language or regular Polish-language university courses offering the study of Anglistik i.e. Anglo-American literature? Many Polish universities do offer courses given in English by both English as well as non-native speaker staff, generally in political science, biology, mathematics, I've been told:-)
The Jagiełłoń University in Cracow I'm sure does. They also have a reputed institute of Polish language for foreigners which just so happens to be linked with the Kościuszko Foundation in New York and has sponsored numerous exchange for years.
