| Nextseason: | 2019–20 |
| Basketligan | |
| T Bg: |
|
| T Color: | black |
| Season: | 2018–19 |
| Champions: | Södertälje Kings (12th title) |
| Runners Up: | Borås |
| Teams: | 10 |
| Winning Streak: | Borås (8) |
| Losing Streak: | Uppsala (27) |
The 2018–19 Basketligan season was the 26th season of the Basketligan, the top tier basketball league on Sweden. Norrköping Dolphins were the defending champions.
Köping Stars and Wetterbygden Stars joined the league.
| Team | City | Venue | Capacity | |
|---|---|---|---|---|
| Luleå | Luleå | Luleå Energi Arena | ||
| Borås | Borås | Boråshallen | ||
| Jämtland | Östersund | Östersunds sporthall | ||
| Köping Stars | Köping | Karlbergshallen | ||
| Norrköping Dolphins | Norrköping | Stadium Arena | ||
| Nässjö | Nässjö | Nässjö Sporthall | ||
| Södertälje Kings | Södertälje | Täljehallen | ||
| Umeå | Umeå | Umeå Energi Arena | ||
| Uppsala | Uppsala | IFU Arena | ||
| Wetterbygden Stars | Huskvarna | Huskvarna Sporthall |
The playoffs are played with a best-of-five format (1-1-1-1-1).
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Seeded teams played legs 1, 3, 5 and 7 at home.|}
Seeded team played legs 1, 3, 5 and 7 at home.|}
The ninth qualified and the runner-up of the Superettan played a double-legged playoff for a place in the next Basketligan season.|}
| Team | Competition | Progress |
|---|---|---|
| Champions League | First qualifying round | |
| Europe Cup | Second qualifying round | |
| First qualifying round |