2018 NBA season may refer to:
- 2017–18 NBA season (featuring the 2018 NBA Finals between the Golden State Warriors and Cleveland Cavaliers, the last of four consecutive Finals matchups between Golden State and Cleveland, and LeBron James’ final season as a member of the Cavaliers)
- 2018–19 NBA season (featuring the 2019 NBA Finals between the Toronto Raptors and Golden State Warriors)