List of NBL1 National champions

The champion teams of the NBL1 National Finals are determined by grand final championship games at the conclusion of the finals weekend.

The men's and women's champion from each NBL1 conference competes at the NBL1 National Finals each year. The conferences include: South, North, Central, West and East.

After the inaugural NBL1 season in 2019 consisted of only the South Conference, the 2020 NBL1 season was set to be first season with more than one conference and therefore National participation. However, due to the COVID-19 pandemic, the 2020 and 2021 NBL1 National Finals were cancelled.

The inaugural NBL1 National Finals took place in 2022 at the State Basketball Centre in Melbourne. The second annual NBL1 National Finals in 2023 was held at HBF Arena in Perth.