The 1989–90 FIBA Korać Cup was the 19th edition of FIBA's Korać Cup basketball competition. The Spanish Ram Joventut defeated the Italian Scavolini Pesaro in the final. This was Joventut's second time winning the title after a victory in 1981.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Montpellier	227–187	ZTE	131–96	96–91
Hapoel Haifa	140–161	Phonola Caserta	75–81	65–80
WAT Wieden	113–191	Efes Pilsen	66–80	47–111
Sparta Praha	161–163	Bellinzona	88–83	73–80
Oroszlányi Bányász	169–198	Paşabahçe	81–98	88–100
Iraklis	161–158	Crvena zvezda	99–81	62–77
Maccabi Brussels	198–186	Galatasaray Köln	110–100	88–86
Spartak Pleven	140–251	Zadar	72–119	68–132
Oldham Celtics	186–203	Monaco	88–112	98–91
Nyon	157–212	CAI Zaragoza	79–96	78–116
Tungsram	173–169	Torpan Pojat	103–95	70–74
Achilleas Kaimakli	118–262	Pitch Cholet	64–124	54–138
Beslen Makarna	179–196	TTL Bamberg	111–92	68–104
Pezoporikos Larnaca	165–218	Panionios	88–99	77–119
Charlottenburg	138–187	Benetton Treviso	70–96	68–91
Hapoel Galil Elyon	151–152	Smelt Olimpija	70–73	81–79
Illiabum Clube	167–181	Monceau Jumet	84–75	83–106
Hapoel Holon	152–151	Panathinaikos	87–71	65–80
Caja Ronda	142–145	Trane Castors Braine	75–80	67–65
KR	118–105	Hemel Royals	53–45	65–60
Fribourg Olympic	164–204	Pau-Orthez	94–102	70–102
Contern	132–191	Valvi Girona	80–98	52–93
Apollon Patras	134–172	Hapoel Tel Aviv	75–79	59–93
Fenerbahçe	154–178	Bosna	86–92	68–86
Möllersdorf Traiskirchen	133–176	Ludwigsburg	81–84	52–92
Inter Slovnaft	180–133	Værløse	100–62	80–71

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Montpellier	195–213	Phonola Caserta	95–97	100–116
Efes Pilsen	182–156	Bellinzona	103–75	79–81
Paşabahçe	150–155	Iraklis	80–82	70–73
Maccabi Brussels	201–219	Zadar	96–103	105–116
Monaco	166–174	CAI Zaragoza	89–79	77–95
Tungsram	132–190	Pitch Cholet	72–89	60–101
TTL Bamberg	155–182	Panionios	66–86	89–96
Benetton Treviso	148–167	Smelt Olimpija	80–83	68–84
Monceau Jumet	169–209	Ram Joventut	82–91	87–118
Hapoel Holon	180–167	Trane Castors Braine	93–93	87–74
KR	153–199	Pau-Orthez	78–97	75–102
Valvi Girona	181–193	Enimont Livorno	100–92	81–101
Hapoel Tel Aviv	167–183	Scavolini Pesaro	79–78	88–105
Bobcat Gent	156–211	Bosna	78–100	78–111
CSKA Moscow	210–174	Ludwigsburg	108–94	102–80
SKA Alma-Ata	178–164	Inter Slovnaft	103–86	75–78

Group A Team Pld Pts W L PF PA PD 1. CSKA Moscow 6 10 4 2 514 477 +37 2. Bosna 6 10 4 2 544 519 +25 3. Phonola Caserta 6 10 4 2 492 475 +17 4. Iraklis 6 6 0 6 485 564 −79

Group B Team Pld Pts W L PF PA PD 1. Efes Pilsen 6 10 4 2 540 524 +16 2. Panionios 6 9 3 3 557 559 −2 3. SKA Alma-Ata 6 9 3 3 566 561 +5 4. Hapoel Holon 6 8 2 4 532 551 −18

Group C Team Pld Pts W L PF PA PD 1. Pitch Cholet 6 9 3 3 549 539 +10 2. Enimont Livorno 6 9 3 3 539 541 −2 3. CAI Zaragoza 6 9 3 3 495 498 −3 4. Smelt Olimpija 6 9 3 3 548 553 −5

Group D Team Pld Pts W L PF PA PD 1. Ram Joventut 6 11 5 1 544 507 +37 2. Scavolini Pesaro 6 11 5 1 575 520 +55 3. Zadar 6 7 1 5 557 574 −17 4. Pau-Orthez 6 7 1 5 496 571 −75

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Panionios	160–191	CSKA Moscow	107–85	53–106
Efes Pilsen	169–224	Bosna	91–107	78–117
Enimont Livorno	168–170	Ram Joventut	88–87	80–83
Pitch Cholet	169–206	Scavolini Pesaro	75–102	94–104

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
CSKA Moscow	184–196	Scavolini Pesaro	90–89	94–107
Bosna	162–184	Ram Joventut	90–90	72–94

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Scavolini Pesaro	184–195	Ram Joventut	98–99	86–96

1989–90 FIBA Korać Cup Champions
Ram Joventut 2nd title

• 1989–90 FIBA Korać Cup @ linguasport.com
• 1989–90 FIBA Korać Cup