| Club: | Fiorentina |
| Season: | 1988–89 |
| Chairman: | Lorenzo Righetti |
| Manager: | Sven-Göran Eriksson |
| League: | Serie A |
| League Result: | 7th |
| League Topscorer: | Roberto Baggio (15) |
| Season Topscorer: | Roberto Baggio (24) |
| Cup2: | Coppa Italia |
| Cup2 Result: | Quarter-finals |
| Pattern B1: | _acf8687h |
| Leftarm1: | 5a2ecb |
| Body1: | 5a2ecb |
| Rightarm1: | 5a2ecb |
| Shorts1: | 5a2ecb |
| Socks1: | 5a2ecb |
| Pattern B2: | _acf8889a |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
| Prevseason: | 1987–88 |
| Nextseason: | 1989–90 |
A.C. Fiorentina finished in the midfield of Serie A, beating Roma 1-0 in a playoff match due to a goal by ex-Roma player Roberto Pruzzo. The season also marked the international breakthrough of Roberto Baggio, the striker scoring 15 league goals, also setting up several of Stefano Borgonovo's 14.
| In | |||||||
|---|---|---|---|---|---|---|---|
| width=3% | Pos. | width=32% | Name | width=30% | from | width=35% | Type |
| FW | Stefano Borgonovo | loan | |||||
| MF | Luca Mattei | - | |||||
| MF | Dunga | - | |||||
| FW | Roberto Pruzzo | - | |||||
| GK | Giuseppe Pellicanò | - | |||||
| MF | Stefano Salvatori | - | |||||
| FW | Diego Aguirre | ||||||
| Out | |||||||
|---|---|---|---|---|---|---|---|
| width=3% | Pos. | width=32% | Name | width=30% | To | width=35% | Type |
| FW | |||||||
| MF | |||||||
| DF | |||||||
| MF | |||||||
| MF | |||||||
| FW | Diego Aguirre | ||||||
See main article: 1988–89 Serie A.
Fiorentina qualified for 1989–90 UEFA Cup.
See main article: 1988–89 Coppa Italia.