| Election Name: | 1990 Tuscan regional election |
| Country: | Tuscany |
| Previous Election: | 1985 |
| Next Election: | 1995 |
| Election Date: | 6–7 May 1990 |
| Seats For Election: | All 50 seats to the Regional Council of Tuscany |
| Noleader: | yes |
| Party1: | PCI |
| Last Election1: | 25 |
| Seats1: | 22 |
| Percentage1: | 39.8% |
| Party2: | DC |
| Last Election2: | 14 |
| Seats2: | 14 |
| Percentage2: | 25.9% |
| Party3: | PSI |
| Last Election3: | 5 |
| Seats3: | 6 |
| Percentage3: | 13.6% |
| Party4: | Federation of the Greens |
| Last Election4: | 1 |
| Seats4: | 2 |
| Percentage4: | 3.8% |
| Party5: | PRI |
| Last Election5: | 1 |
| Seats5: | 1 |
| Percentage5: | 3.5% |
| Party6: | MSI |
| Last Election6: | 2 |
| Seats6: | 1 |
| Percentage6: | 3.3% |
| Party7: | CPA |
| Last Election7: | 0 |
| Seats7: | 1 |
| Percentage7: | 3.3% |
| Party8: | PSDI |
| Last Election8: | 1 |
| Seats8: | 1 |
| Percentage8: | 1.6% |
| Party9: | DP |
| Last Election9: | 1 |
| Seats9: | 1 |
| Percentage9: | 1.1% |
| Party10: | PLI |
| Last Election10: | 0 |
| Seats10: | 1 |
| Percentage10: | 1.0% |
| Map: | Toscana 1990.png |
The Tuscan regional election of 1990 took place on 6 and 7 May 1990.
Election was held under proportional representation with provincial constituencies where the largest remainder method with a Droop quota was used. To ensure more proportionality, remained votes and seats were transferred at regional level and calculated at-large.
The Italian Communist Party was by far the largest party, but lost many votes from five years before. After the election Communist Marco Marcucci formed a government comprising the Italian Socialist Party and the Italian Democratic Socialist Party. In 1992 Vannino Chiti took over from Marcucci and the centre-right Italian Liberal Party joined the government.[1]
| Parties | votes | votes (%) | seats | ||
|---|---|---|---|---|---|
| bgcolor= | Italian Communist Party | 986,513 | 39.8 | 22 | |
| bgcolor= | Christian Democracy | 642,623 | 25.9 | 14 | |
| bgcolor= | Italian Socialist Party | 337,719 | 13.6 | 6 | |
| bgcolor= | Greens (Green List + Rainbow Greens) | 85,784 | 3.8 | 2 | |
| bgcolor= | Italian Republican Party | 85,784 | 3.5 | 1 | |
| bgcolor= | Italian Social Movement | 82,295 | 3.3 | 1 | |
| bgcolor= | Hunting – Fishing – Environment | 76,202 | 3.1 | 1 | |
| bgcolor= | Italian Democratic Socialist Party | 39,863 | 1.6 | 1 | |
| bgcolor= | Proletarian Democracy | 26,805 | 1.1 | 1 | |
| bgcolor= | Italian Liberal Party | 25,872 | 1.0 | 1 | |
| Antiprohibitionists on Drugs | 24,024 | 1.0 | align=right | - | |
| Greens Progress | 20,692 | 0.8 | align=right | - | |
| Northern League Tuscany | 20,657 | 0.8 | align=right | - | |
| Pensioners' List | 11,753 | 0.5 | align=right | - | |
| Local list | 3.420 | 0.1 | align=right | - | |
| Total | 2,478,167 | 100.0 | 50 | ||