| 2008–09 KBL season | |
| League: | Korean Basketball League |
| Sport: | Basketball |
| Duration: | October 31, 2008 – May 1, 2009 |
| Tv: | KBS, MBC, SBS, Xports, MBC-ESPN, SBS Sports |
| Season: | Regular Season |
| Season Champs: | Ulsan Mobis Phoebus |
| Mvp: |  Joo Hee-jung (KT&G) |
| Top Scorer: |  Terrence Leather (Samsung) |
| Finals: | Finals |
| Finals Link: | Korean Basketball League#Results |
| Finals Champ: | Jeonju KCC Egis |
| Finals Runner-Up: | Seoul Samsung Thunders |
| Finals Mvp: | Choo Seung-kyun (KCC) |
| Finals Mvp Link: | Korean Basketball League#Results |
| Seasonslist: | List of KBL seasons |
| Seasonslistnames: | KBL |
| Prevseason Link: | 2007–08 KBL season |
| Prevseason Year: | 2007–08 |
| Nextseason Link: | 2009–10 KBL season |
| Nextseason Year: | 2009–10 |
The 2008–09 Dongbu Promy Professional Basketball season was the 13th season of the Korean Basketball League.
| width=3% | RK | width=20% | Team | width=5% | G | width=5% | W | width=5% | L | width=6% | PCT | width=4% | GB | width=9% | Tiebreaker |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ulsan Mobis Phoebus | 54 | 35 | 19 | 0.648 | – | – | ||||||||
| 2 | Wonju Dongbu Promy | 54 | 33 | 21 | 0.611 | 2 | – | ||||||||
| 3 | Jeonju KCC Egis | 54 | 31 | 23 | 0.574 | 4 | – | ||||||||
| 4 | Seoul Samsung Thunders | 54 | 30 | 24 | 0.556 | 5 | – | ||||||||
| 5 | Changwon LG Sakers | 54 | 29 | 25 | 0.537 | 6 | 6–6, +12 | ||||||||
| 6 | Incheon ET Land Black Slamer | 54 | 29 | 25 | 0.537 | 6 | 6–6, +3 | ||||||||
| 7 | Anyang KT&G Kites | 54 | 29 | 25 | 0.537 | 6 | 6–6, –15 | ||||||||
| 8 | Seoul SK Knights | 54 | 24 | 30 | 0.444 | 11 | – | ||||||||
| 9 | Daegu Orions | 54 | 18 | 36 | 0.333 | 17 | – | ||||||||
| 10 | Busan KTF Magic Wings | 54 | 12 | 42 | 0.222 | 23 | – |
KRW 130,000,000 (champions + regular-season 3rd place)
KRW 100,000,000 (regular-season 1st place)
KRW 50,000,000 (runners-up)
KRW 50,000,000 (regular-season 2nd place)