| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
| Energa Basket Liga | |
| Season: | 2017–18 |
| Champions: | Anwil Włocławek (2nd title) |
| Runners Up: | BM Slam Stal Ostrów Wielkopolski |
| Third Place: | Polski Cukier Toruń |
| Fourth Place: | Stelmet Enea Zielona Góra |
| Relegated: | Czarni Słupsk |
| Teams: | 17 |
| Dates: | 30 September 2017 – 4 June 2018 |
| Top Seed: | Anwil Włocławek |
| Mvp Link: | PLK Most Valuable Player |
| Mvp N: | Cape Verde |
| Finals Mvp Link: | PLK Finals MVP |
| Finals Mvp N: | POL |
| Ppg: | 22.4 |
| Ppg N: | USA |
| Rebounds Leader: | D.J. Shelton |
| Rpg: | 10.1 |
| Rpg N: | USA |
| Assists Leader: | Aaron Johnson |
| Apg: | 7.7 |
| Apg N: | USA |
The 2017–18 Polish Basketball League (PLK) 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.
Polfarmex Kutno 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.[1]
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.[2]
| Team | Location | Arena | Capacity | |
|---|---|---|---|---|
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| Hala Widowiskowo-Sportowa | align=center | |||
| Hala Sportowa Stal | align=center | |||
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| Centrum Sportowo-Kulturalne Łabędź | align=center | |||
| OSiR Bemowo | align=center | [3] | ||
| MOSiR Krosno | align=center | |||
| Centrum Hall | align=center | |||
| PGE Turów Arena | align=center | |||
| Argo-Kociewie | ||||
| Arena Toruń | align=center | |||
| ZSE Radom | align=center | |||
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| Hala Globus | ||||
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Quarterfinals and semifinals are played in a best-of-five format (2-2-1) while the finals in a best-of-seven one (2-2-1-1-1). The third place series are played in a double-legged format.
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| Player | Team | |
|---|---|---|
 Ivan Almeida | Anwil Włocławek | |
| Polski Cukier Torun | ||
| Rosa Radom | ||
| Stelmet Zielona Góra | ||
| Stal Ostrów Wielkopolski |
| Club | Competition | Result | ||
|---|---|---|---|---|
| Champions League | Round of 16 | [5] | ||
| Regular season | ||||
| FIBA Europe Cup | Second qualifying round | [6] |