Frysztat County (Polish: Powiat frysztacki) was an of the Second Polish Republic. Named after its capital in the town of Frysztat (now Fryštát district of the town Karviná, Czech Republic), it was part of Silesian Voivodeship, and existed from October 1938 until German Invasion of Poland in September 1939. The county had four towns: Frysztat, Bogumin Nowy, Karwina and Orłowa. On January 31, 1939, Frysztat County was expanded by the gminas of Gruszów, Hermanice, Michałkowice, Radwanice and Ostrawa Śląska. Also, some smaller territorial changes were introduced.