The Liga Nacional de Básquetbol (abbreviated LNB, and literally in English, "National Basketball League"), is the top-tier level of the Paraguayan basketball league system. As of 2024, 7 teams are participating in the league. The yearly winners of this league are considered the Paraguayan basketball champions. Because of this, the champion gets the right to play in the Liga Sudamericana de Baloncesto.
Amidst the 2020 COVID-19 pandemic, it was announced that the Liga Nacional would return on 22 July 2020. Basket Paraguayo informed that all games would be played at the Polideportivo at the Secretaria Nacional de Deportes.