The Israeli Basketball Super League (BSL) 2008-2009 season was the 55th season of the top basketball league in Israel. The season began on 26 October 2008 and ended on 21 May 2009. Maccabi Tel Aviv won its 48th league title, defeating Maccabi Haifa Heat 85-72 in the final. The defending champion was Hapoel Holon. The four last ranked team competed in a best-of-5 series relegation playoff, whereElitzur Kiryat Ata and Maccabi Giv'at Shmuel lost and were relegated to Liga Leumit. They will be replaced by Maccabi Elitzur Netanya and Hapoel Afula, who qualified from Liga Leumit.