| Season: | 1988–89 |
| League Result: | 5th |
| League Topscorer: | Gianluca Vialli (14) |
| Season Topscorer: | Gianluca Vialli (33) |
| Cup3 Result: | Runners-up |
| Cup1 Result: | Winners |
| Cup2 Result: | Runners-up |
| Leftarm1: | 0044BE |
| Pattern B1: | _samp |
| Body1: | 0044BE |
| Rightarm1: | 0044BE |
| Shorts1: | FFFFFF |
| Socks1: | 0044BE |
| Leftarm2: | ffffff |
| Pattern B2: | _samp8485a |
| Body2: | ffffff |
| Rightarm2: | ffffff |
| Shorts2: | FFFFFF |
| Socks2: | ffffff |
| Nextseason: | 1989–90 |
U.C. Sampdoria had its most successful season ever, winning the Coppa Italia and reaching the final of the Cup Winners' Cup, where it came up short to Barcelona with 2–0. It finished fifth in Serie A with 14 goals from Gianluca Vialli marking the international breakthrough for the striker.
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See main article: 1988–89 Serie A.
See main article: 1988–89 Coppa Italia. First roundSecond roundQuarterfinalsSemifinals
See main article: 1989 Coppa Italia Final.
See main article: 1988 Supercoppa Italiana.
See main article: 1988–89 European Cup Winners' Cup. First roundSecond round
QuarterfinalsSemifinals
See main article: 1989 European Cup Winners' Cup Final.
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