The 2019–20 Slovenian Basketball League, also known as Liga Nova KBM due to sponsorship reasons was the 29th season of the Premier A Slovenian Basketball League. KK Koper Primorska are the defending champions. On 12 March 2020, the Basketball Federation of Slovenia temporarily suspended its competitions due to the COVID-19 pandemic. On 20 March, the Basketball Federation canceled definitely its competitions due to the COVID-19 pandemic.