| 2023 NBL1 season | |
|---|---|
 | |
| League | NBL1 |
| Sport | Basketball |
| Duration | 11 March – 12 August (Conference seasons) 18–20 August (NBL1 National Finals) |
| National Finals | |
| Champions | M: Knox Raiders W: Bendigo Braves |
| Runners-up | M: Rockingham Flames W: Norths Bears |
| Grand Final MVP | M: Ke'Jhan Feagin (Knox Raiders) W: Megan McKay (Bendigo Braves) |
The 2023 NBL1 season was the fourth season of the NBL1. The season consisted of five conferences: South, North, Central, West and East.
The second annual National Finals were held in Perth, with both NBL1 National champions coming from the South Conference in the Bendigo Braves women and the Knox Raiders men.