2017–18 Slovak Basketball League
| Extraliga | |
|---|---|
| Season | 2017–18 | 
| Teams | 10 | 
| Finals | |
| Champions | Levickí Patrioti (2nd title)  | 
| Runners-up | Košice | 
| Third place | Inter Bratislava | 
| Fourth place | MBK Rieker Komarno | 
← 2016–17  2018–19 →   | |
The 2017–18 Slovak Basketball League season was the 26th season of the top-tier basketball competition in Slovakia. Inter Bratislava was the defending champion, but was eliminated in the semifinals. Levickí Patrioti won their second league.