| Season: | 1988–89 |
| League Result: | 2nd |
| Cup1 Result: | Runners-up |
| Cup2 Result: | Winners |
| Pattern B1: | _napoli8283h |
| Leftarm1: | 3da4df |
| Body1: | 5486be |
| Rightarm1: | 3da4df |
| Socks1: | 3da4df |
| Pattern B2: | _napoli8586a |
| Pattern La3: | _napoli8081a |
| Pattern B3: | _napoli8687a |
| Pattern Ra3: | _napoli8081a |
| Shorts3: | ffffff |
| Socks3: | ff0000 |
| League Topscorer: | Careca (19) |
| Season Topscorer: | Careca (27) |
| Nextseason: | 1989–90 |
S.S.C. Napoli won an international trophy for the first time, defeating Stuttgart 2-1 and drawing 3-3 in the two-legged final. Napoli did not match Inter in the domestic league, but recorded a second place, its fourth consecutive podium finish in the final standings.
| Cessioni | |||||||
|---|---|---|---|---|---|---|---|
| width=3% | R. | width=33% | Nome | width=28% | a | width=36% | Modalità |
| MF | Avellino | ||||||
| GK | |||||||
| DF | loan | ||||||
| FW | Ascoli | loan | |||||
| MF | Pescara | ||||||
| MF | |||||||
| DF | loan | ||||||
See main article: 1988–89 Serie A.
Careca 19
Andrea Carnevale 13
Diego Maradona 9 Alemão 3See main article: 1988–89 Coppa Italia. First Round- Group phaseSecond roundQuarter-finalsSemi-finals
See main article: 1989 Coppa Italia Final.
See main article: 1988–89 UEFA Cup.
See main article: 1989 UEFA Cup Final.