NBL Finals

The National Basketball League (NBL) Finals is a tournament held at the end of each NBL season to determine the league champions.

The top six teams qualify for the finals based on the regular season results. The current finals format consists of four rounds: two sudden-death play-in games then the best-of-three Semifinals and best-of-five Grand Final series.

1999
The top six teams at the end of the regular season advance to the finals under this playoff system:
 * The first round of the postseason sees the team that finishes in first place at the end of the regular season against the team that finishes sixth; second plays fifth, and third plays fourth.
 * The three teams that win their respective best-of-three first-round series advances, and is joined in the semifinals by the highest-placed losing team from the first round.
 * Teams are then seeded again for the best-of-three semifinal series. The three winning teams from the first round are seeded in order of their regular-season finishing positions, and the first-round loser automatically becomes the No. 4 seed.
 * The two winning teams from the semifinals meet in a best-of-three Grand Final series to determine the champion.

2017–2022
The top four teams at the end of the regular season advance to the finals under this playoff system:
 * The semifinals of the postseason sees the team that finishes in first place at the end of the regular season against the team that finishes fourth; and second plays third. All four teams play a best-of-three semifinal series.
 * The two winning teams from the semifinals meet in a best-of-five Grand Final series to determine the champion.

List of finals
This is a complete listing of National Basketball League (NBL) Finals series, grouped by franchise. Series featuring relocated and/or renamed teams are kept with their ultimate relocation franchises. Bolded years indicate wins. Years in italics indicate series in progress. Tables are sorted first by the number of series, then the number of wins, and then by year of first occurrence.

Adelaide 36ers
As of the end of the 2018 season

Brisbane Bullets
As of the end of the 2019 season

Cairns Taipans
As of the end of the 2023 season

Illawarra Hawks
As of the end of the 2024 season

Melbourne United
As of the end of the 2024 season

New Zealand Breakers
As of the end of the 2024 season

Perth Wildcats
As of the end of the 2024 season

S.E. Melbourne Phoenix
As of the end of the 2023 season

Sydney Kings
As of the end of the 2024 season

Tasmania JackJumpers
As of the end of the 2024 season