| Season: | 1989–90 |
| Owner: | Paolo Mantovani |
| Chairman: | Paolo Mantovani |
| League Result: | 5th |
| League Topscorer: | Roberto Mancini (11) |
| Cup3 Result: | Winners |
| Cup1 Result: | Group stage |
| Cup2 Result: | Runners-up |
| Leftarm1: | 2234a4 |
| Pattern B1: | _samp8990h |
| Body1: | 2234a4 |
| Pattern Ra1: | _samp8485h |
| Rightarm1: | 2234a4 |
| Shorts1: | FFFFFF |
| Socks1: | 2234a4 |
| Pattern B2: | _samp8990a |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
| Nextseason: | 1990–91 |
U.C. Sampdoria won their first ever European trophy, thanks to a Cup Winners' Cup final victory against Anderlecht, thanks to two extra time goals from star striker Gianluca Vialli.
| In | |||||||
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| width=3% | Pos. | width=33% | Name | width=28% | from | width=36% | Type |
| MF | |||||||
| MF | |||||||
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| DF | |||||||
| MF | |||||||
| Out | |||||||
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| width=3% | Pos. | width=33% | Name | width=28% | to | width=36% | Type |
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See main article: 1989–90 Serie A.
See main article: 1989–90 Coppa Italia.
First round Second roundGroup phaseGroup 4
| width=200 | Team | width=20 | P.ti | width=20 | G | width=20 | V | width=20 | N | width=20 | P | width=20 | GF | width=20 | GS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juventus | 4 | 2 | 2 | 0 | 0 | 3 | 1 | ||||||||
| Sampdoria | 2 | 2 | 1 | 0 | 1 | 3 | 3 | ||||||||
| Pescara | 0 | 2 | 0 | 0 | 2 | 1 | 3 |
See main article: 1989–90 European Cup Winners' Cup. First roundEightfinalsQuarterfinalsSemifinals
See main article: 1990 European Cup Winners' Cup Final.
See main article: 1989 Supercoppa Italiana.
