The Czechoslovak Basketball League (abbreviation CSBL) was the highest level professional clubbasketball competition for men in Czechoslovakia. Its successor national league in the Czech Republic became the Mattoni NBL, and its successor national league in Slovakia became the Extraliga.
History
1929–30 to 1938–39 Provincial League of Bohemia and Moravia
1939–40 to 1944–45 Provincial League of Protectorate