2017–18 PLK season
The 2017–18 Polish Basketball League season, the Energa Basket Liga for sponsorship reasons, was the 84th season of the Polish Basketball League, the highest professional basketball league in the Poland. The season started on 30 September 2017 and ended 4 June 2018. Anwil Włocławek won its second ever title in club history.
Teams
and Siarka Tarnobrzeg were relegated to the I Liga after finishing in the 15th and 16th place in the 2016–17 PLK season. Legia Warsaw promoted to the PLK 15 years later, after winning the I Liga championship.On July 28, 2017, the PLK announced it expanded the number of teams to 17 by giving a wild card to GTK Gliwice, the runner-up of the I Liga.
Locations and venues
| Team | Location | Arena | Capacity |
| Anwil Włocławek | Włocławek | Hala Mistrzów | 4200 |
| Asseco Gdynia | Gdynia | Gdynia Sports Arena | 5500 |
| AZS Koszalin | Koszalin | Hala Widowiskowo-Sportowa | 3000 |
| BM Slam Stal Ostrów Wielkopolski | Ostrów Wielkopolski | Hala Sportowa Stal | 1200 |
| Energa Czarni Słupsk | Słupsk | Hala Gryfia | 3200 |
| GTK Gliwice | Gliwice | Centrum Sportowo-Kulturalne Łabędź | |
| Legia Warsaw | Warsaw | OSiR Bemowo | 1000 |
| Miasto Szkła Krosno | Krosno | MOSiR Krosno | 1380 |
| MKS Dąbrowa Górnicza | Dąbrowa Górnicza | Centrum Hall | |
| PGE Turów Zgorzelec | Zgorzelec | PGE Turów Arena | 3500 |
| Polpharma Starogard Gdański | Starogard Gdański | Argo-Kociewie | |
| Polski Cukier Toruń | Toruń | Arena Toruń | |
| Rosa Radom | Radom | ZSE Radom | 1200 |
| Stelmet Enea Zielona Góra | Zielona Góra | CRS Hall Zielona Góra | |
| TBV Start Lublin | Lublin | Globus | |
| Trefl Sopot | Sopot | Ergo Arena | 15000 |
| Wilki Morskie Szczecin | Szczecin | Azoty Arena |
Regular season
League table
Playoffs
Quarterfinals and semifinals are played in a best-of-five format while the finals in a best-of-seven one. The third place series are played in a double-legged format.Bracket
Quarterfinals
Semifinals
Third-place game
Final
Awards
;PLK Most Valuable Player| Player | Team | |
 Ivan Almeida | Anwil Włocławek |
;PLK Finals MVP
| Player | Team | |
 Kamil Łączyński | Anwil Włocławek |
;All-PLK Team
| Player | Team | |
| Ivan Almeida | Anwil Włocławek | |
 Aaron Cel | Polski Cukier Torun | |
| Michał Sokołowski | Rosa Radom | |
 Vladimir Dragičević | Stelmet Zielona Góra | |
 Aaron Johnson | Stal Ostrów Wielkopolski |