The 2019–20 season was the inaugural season of KK Cedevita Olimpija. The club competed in the Slovenian League, the Adriatic League and the EuroCup. Cedevita Olimpija has lost two cup finals during the season, the 2019 Adriatic Supercup and the 2020 Slovenian Cup. The Slovenian League and the Adriatic League seasons were cancelled due to the COVID-19 pandemic.