The Yugoslav First Basketball League (Serbo-Croatian: Prva savezna košarkaška liga) was the name of the top level basketball league played in SFR Yugoslavia from 1945 to 1990-91. The First Federal League was the top-tier league in Yugoslavia, and the Second Federal League was the second-tier league in Yugoslavia. With a total of 15 European trophy winners and 11 finalist, the Yugoslav First Basketball League, was one of the strongest basketball leagues of all times.
Although all countries founded after the breakup of Yugoslavia each now have their own national domestic leagues, each of the six nations now take part in the Adriatic League, which was founded in 2001; and which is today the closest league in existence similar to the former Yugoslav Basketball League.
After the end of Second World War in Yugoslavia in 1945, there arose a need for athletic development in the fledgling nation. Post-WW2 Yugoslavia was (with the exception of major cities such as Belgrade, Ljubljana, Zagreb, and Sarajevo) for the most part lacking in competitive opportunities in sports. In response to this, 1945 and 1946 saw an explosion of new clubs and leagues for every sport, the basketball league being part of this phenomenon.
The very first competition under the newly formed Yugoslav Basketball League in 1945, drawing parallel to the Yugoslav First League (of football), was more or less a nationwide affirmation of unity. Instead of individual clubs competing in the usual fashion, there were only eight teams. Six representing each state within Yugoslavia, one representing the province of Vojvodina, and the last representing the Yugoslav People's Army.
Only in the 1970s did the basketball culture of Yugoslavia truly come to enjoy recognition as the top nation in basketball. Breaking away from the dominance of the Soviet Union, the Yugoslav league gave rise to stars that would go on to win multiple Basketball World Championships and European Basketball Championships. After a decade of dominance, the 1980s saw a disappointing slump of talent in the Yugoslav Basketball League.
Despite all these changes, the joint league of clubs from the former Yugoslavia proved to be a winning league format formula, so on July 3, 2001, the Adriatic League was founded. It features teams from all the former Yugoslav states, and it exists alongside scaled-down versions of the individual national domestic leagues of each of the former Yugoslav states.
Split has made 3 Euroleague Final Four appearances (with 3 top 4 place finishes), has played in the Euroleague Final 4 times, and has won the Euroleague championship 3 times. Cibona has played in the Euroleague Final 2 times, and has won the Euroleague championship two times. Bosna has played in the Euroleague Final 1 time, and has won the Euroleague championship once. Partizan has made 2 Euroleague Final Four appearances, has played in the Euroleague Final once, and has won the Euroleague championship 1 time.
^On 9 April 1983, Šibenka and Bosna played the final game that was decided in the last second: Bosna's Hadžić fouled Šibenka's Petrović, who proceeded to score two free throws that won the game. The next morning, the presidency of the Basketball Federation of Yugoslavia voided the result and ordered a rematch in Novi Sad. Šibenka decided to boycott it, and the title was awarded to Bosna.