The 2020–21 BIBL season is the 12th edition of Balkan International Basketball League (BIBL). Besides 6 teams from Bulgaria, Montenegro and North Macedonia, 12 teams from Israel joined the competition, after temporary suspension of 2020-2021 Israeli Basketball League due to the COVID-19 pandemic. These 12 teams played inside of Israel in first round of regular season and the best two teams joined the other 4 Balkan teams, which qualified from the Balkan group.