| Nextseason: | 2018–19 |
| Greek Basket League | |
| T Bg: |
|
| T Color: | white |
| Champions: | Panathinaikos Superfoods (36th title) |
| Season: | 2017–18 |
| Runners Up: | Olympiacos |
| Third Place: | PAOK |
| Fourth Place: | Promitheas Patras |
| Relegated: | Koroivos Trikala Aries |
| Teams: | 14 |
| Games: | 182 (regular season) 22 (playoffs) |
| Tv: | ERT Cosmote Sport |
| Duration: | 7 October 2017 – 12 May 2018 (regular season) 16 May 2018 – 17 June 2018 (playoffs) |
| Mvp: | Nick Calathes |
| Mvp Link: | Greek Basket League MVP |
| Finals Mvp Link: | Greek Basket League Finals MVP |
| Major: | yes |
| Ppg: | 391 |
| Rpg: | 187 |
| Apg: | 182 |
The 2017–18 Greek Basket League was the 78th season of the Greek Basket League, the top-tier level professional club basketball league in Greece. The season started on October 7, 2017, and ended on June 17, 2018.
Apollon Patras, and Doxa Lefkadas were relegated after the 2016–17 Greek Basket League. Panionios and Gymnastikos Larissas Faros were promoted from the 2016–17 Greek A2 Basket League.
| Club | City | Arena | Capacity | |||
|---|---|---|---|---|---|---|
| AEK | Athens (Marousi) | OAKA Indoor Hall | align=center | [1] | ||
| Aris | Thessaloniki | Alexandrio Melathron | align=center | |||
| Gymnastikos Larissas Faros | Larissa | Larissa Neapolis Indoor Arena | align=center | |||
| Kolossos | Rhodes City | Venetoklio Indoor Hall | align=center | [2] | ||
| Koroivos | Amaliada | Amaliada Indoor Hall | align=center | |||
| Kymis | Kymi | Tasos Kampouris Kanithou Indoor Hall | align=center | |||
| Lavrio Megabolt | Lavrio | Lavrio Indoor Hall | align=center | |||
| Olympiacos | Athens (Piraeus) | Peace and Friendship Stadium | align=center | [3] | ||
| Panathinaikos Superfoods | Athens (Marousi) | OAKA Indoor Hall | align=center | |||
| Panionios | Athens (Nea Smyrni) | Nea Smyrni Indoor Hall | align=center | |||
| PAOK | Thessaloniki (Pylaia) | PAOK Sports Arena | align=center | [4] | ||
| Promitheas Patras | Patras | Dimitris Tofalos Arena | align=center | |||
| Rethymno Cretan Kings | Rethymno | Rethymno Indoor Hall | align=center | |||
| Trikala Aries | Trikala | Trikala Indoor Hall | align=center |
The eight highest ranked teams in the regular season qualified for the playoffs.
Teams in bold won the playoff series. Numbers to the left of each team indicate the team's original playoff seeding. Numbers to the right indicate the score of each playoff game.
The higher-seeded team played the first and third leg (if necessary) at home. The first legs were played on 16 May, while the second legs were played on 19 May 2018.|}
The higher-seeded team played the first, second and fifth leg (if necessary) at home. The first legs were played on 24 May, while the second legs were played on 26 May 2018.|}
|}
|}
| width=30 | width=200 | Team | width=30 | width=30 | width=30 | Qualification or Relegation | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Panathinaikos | 36 | 34 | 2 | Qualification to the EuroLeague *Club qualified for EuroLeague by having a contract | |||||
| 2 | Olympiacos | 36 | 29 | 7 | ||||||
| 3 | PAOK | 34 | 22 | 12 | Qualification to the Champions League regular season *PAOK, Promitheas Patras, and AEK declined EuroCup participation. | |||||
| 4 | Promitheas Patras | 34 | 19 | 15 | ||||||
| 5 | AEK | 28 | 15 | 13 | ||||||
| 6 | Lavrio | 28 | 14 | 14 | Qualification to the FIBA Europe Cup qualification round. | |||||
| 7 | Kymis Seajets | 28 | 14 | 14 | ||||||
| 8 | Kolossos Rodou | 28 | 11 | 17 | ||||||
| 9 | Aris | 26 | 10 | 16 | Qualification to the Champions League qualification round, as wild card. | |||||
| 10 | Rethymno Cretan Kings | 26 | 10 | 16 | ||||||
| 11 | Gymnastikos Larissas Faros | 26 | 8 | 18 | ||||||
| 12 | Panionios | 26 | 7 | 19 | ||||||
| 13 | Koroivos | 26 | 7 | 19 | Relegation to the Greek A2 League | |||||
| 14 | Trikala Aries | 26 | 4 | 22 |
| class="wikitable" style="text-align: center;" width="60%" | |||
| All-Greek League First Team[5] | |||
| Pos. | Player | width=20% | Team |
|---|---|---|---|
| PG |   Nick Calathes MVP | Panathinaikos | |
| SG |  Thad McFadden | Kymis | |
| SF | McKenzie Moore | Lavrio | |
| PF | Panathinaikos | ||
| C |  Nikola Milutinov | Olympiacos | |
| class="wikitable" style="text-align: center;" width="60%" | |||
| All-Greek League Second Team[6] | |||
| Pos. | Player | width=20% | Team |
|---|---|---|---|
| PG | Vassilis Spanoulis | Olympiacos | |
| SG | Mike James | Panathinaikos | |
| SF | Kostas Papanikolaou | Olympiacos | |
| PF | Michale Kyser | Kymis | |
| C | Georgios Printezis | Olympiacos | |
| class="wikitable" style="text-align: center;" width="60%" | |||
| All-Greek League Defensive Team[7] | |||
| Pos. | Player | width=20% | Team |
|---|---|---|---|
| PG | Nick Calathes (Best Defender) | Panathinaikos | |
| SG | McKenzie Moore | Lavrio | |
| SF | Kostas Papanikolaou | Olympiacos | |
| PF | Thanasis Antetokounmpo | Panathinaikos | |
| C | Michale Kyser | Kymis | |
| Team | Competition | Result |
|---|---|---|
| EuroLeague | Playoffs | |
| Playoffs, Quarterfinals | ||
| FIBA Champions League | Final-4, 1st place | |
| Playoffs, Round of 16 | ||
| Regular season, 8th place |
