The 2020–21 Prince Mohammad bin Salman League was the 4th season of the Prince Mohammad bin Salman League under its current name, and the 44th season of the Saudi First Division since its establishment in 1976. The season started on 31 October 2020 as a consequence of the postponement of the previous season's conclusion due to the COVID-19 pandemic. Fixtures for the first half of the 2020–21 season were announced on 3 October 2020. Fixtures for the second half were announced on 18 January 2021.