| 1990 McDonald's Open | |
| League: | McDonald's Open |
| Sport: | Basketball |
| Duration: | 11–13 October |
| Top Scorer: |  Patrick Ewing (57 pts) |
| Finals Champ: | New York Knicks |
| Finals Runner-Up: | POP 84 |
| Finals Mvp: | Patrick Ewing |
| Seasonslistnames: | McDonald's Championship |
| Prevseason Link: | 1989 McDonald's Open |
| Prevseason Year: | 1989 McDonald's Open |
| Nextseason Year: | 1991 McDonald's Open |
| Nextseason Link: | 1991 McDonald's Open |
The 1990 McDonald's Open took place at Palau Sant Jordi, in Barcelona, Spain.
| Club | Qualified as | |
|---|---|---|
 FC Barcelona Banca Catalana | Host club | |
| POP 84 | Champions of the 1989–90 FIBA European Champions Cup | |
 Scavolini Pesaro | Champions of the 1989–90 Serie A | |
| New York Knicks | Official guest from the NBA (7th place 1989-90 NBA season) |
All games were held at the Palau Sant Jordi in Barcelona, Spain.
| width=25 | Pos. | width=220 | Club | width=25 | Rec. |
|---|---|---|---|---|---|
| 2–0 | |||||
| 1–1 | |||||
| 1–1 | |||||
| 4th | 0–2 |