| Nextseason: | 2018–19 |
| Basketligan | |
| T Bg: |
|
| T Color: | black |
| Season: | 2017–18 |
| Champions: | Norrköping Dolphins (5th title) |
| Runners Up: | Luleå |
| Teams: | 8 |
| Duration: | 6 October 2017 – May 2018 |
The 2017–18 Basketligan season was the 25th season of the Basketligan, the top tier basketball league on Sweden. The season started on 6 October 2017 and finished in May 2018. Luleå was the defending champion, but failed to repeat as they lost in the last game of the finals to Norrköping Dolphins, that achieved their fifth title ever.
The participating teams first played a conventional round-robin schedule with every team playing each opponent four times for a total of 28 games. The top six teams qualified for the championship playoffs.
After the end of the 2016–17 season, Malbas decided to not continue playing at Basketligan.[1]
| Team | City | Venue | Capacity | |
|---|---|---|---|---|
| BC Luleå | Luleå | Luleå Energi Arena | ||
| Borås Basket | Borås | Boråshallen | ||
| Jämtland Basket | Östersund | Östersunds sporthall | ||
| Norrköping Dolphins | Norrköping | Stadium Arena | ||
| KFUM Nässjö | Nässjö | Nässjö Sporthall | ||
| Södertälje Kings | Södertälje | Täljehallen | ||
| Umeå BSKT | Umeå | Umeå Energi Arena | ||
| Uppsala Basket | Uppsala | IFU Arena |
|}
Seeded teams played legs 1, 3, 5 and 7 at home.|}
Seeded team played legs 1, 3, 5 and 7 at home.|}
| Team | Competition | Progress | |
|---|---|---|---|
| Champions League | First qualifying round | [2] | |
| FIBA Europe Cup | First qualifying round | [3] | |
| Second qualifying round |