The Österreichische Basketball Bundesliga (OBL) (in English: Austrian Basketball League (ABL)) is the top men's professional basketball league in Austria. Until the 2004–05 season, the league was known as the A-Liga (A-League) and then until the 2008–09 season it was called the Österreichische Basketball Bundesliga (OBL). Since the 2008–09 season, it has been named the Admiral Basketball League, after the league's main sponsor, Admiral Sportwetten.