2019–20 Basketball League of Serbia
The 2019–20 Basketball League of Serbia is the 14th season of the Basketball League of Serbia, the highest professional basketball league in Serbia. Also, it's the 76th national championship played by Serbian clubs inclusive of nation's previous incarnations as Yugoslavia and Serbia & Montenegro.
The regular season began in October 2019 and ended in March 2020. The SuperLeague season was suspended prior to its start due to the COVID-19 pandemic. On 28 May 2020, the League Assembly canceled definitely the season due to the COVID-19 pandemic.
Crvena zvezda mts was the defending champion and as a consequence of the COVID-19 pandemic, the League Assembly decided not to recognize any team as the champion for the season. The SuperLeague season would have been played in April and May 2020. The playoffs would have been played in June 2020.
Teams
Distribution
The following is the access list for this season.| Teams entering in this round | Teams advancing from the previous round | |
| First League |
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| Super League |
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| Playoffs |
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Promotion and relegation
; Teams promoted from the Second League; Teams relegated to the Second League
| Team | Home city | Arena | Capacity |
| Borac | Čačak | Borac Hall | 2,000 |
| Crvena zvezda mts | Belgrade | Aleksandar Nikolić Hall | 5,878 |
| Dunav | Stari Banovci | Park Hall | |
| Dynamic VIP PAY | Belgrade | Ranko Žeravica Hall | 5,000 |
| FMP | Belgrade | Železnik Hall | 3,000 |
| Kolubara LA 2003 | Lazarevac | SRC Kolubara | 1,700 |
| Mega Bemax | Belgrade | Mega Factory | 700 |
| Metalac | Valjevo | Valjevo Sports Hall | 1,500 |
| Mladost | Zemun | Master Sport Center | 750 |
| Napredak JKP | Aleksinac | Aleksinac Sports Hall | 1,400 |
| Novi Pazar | Novi Pazar | Pendik Sports Hall | 1,600 |
| OKK Beograd | Belgrade | Mega Factory | 700 |
| Partizan NIS | Belgrade | Štark Arena | 18,386 |
| Sloboda | Užice | Veliki Park Hall | 2,200 |
| Tamiš | Pančevo | Strelište Sports Hall | 1,100 |
| Vojvodina | Novi Sad | SPC Vojvodina | 7,022 |
| Vršac | Vršac | Millennium Center | 4,400 |
| Zlatibor | Čajetina | WAI TAI - STC Zlatibor | 712 |
| Teams that play in the 2019–20 First Adriatic League | |
| Teams that play in the 2019–20 Second Adriatic League |