The Umbrian regional election of 1990 took place on 6 and 7 May 1990.
The Italian Communist Party was by far the largest party, even if it lost several votes from the previous election in 1985. After the election, Francesco Mandarini, the incumbent Communist President, continued to govern the Region at the head of a left-wing coalition with the Italian Socialist Party (Popular Democratic Front).
In 1992 Mandarini was replaced by Francesco Ghirelli, to whom Claudio Carnieri succeeded in 1993. Both Ghirelli and Carnieri were members of the Democratic Party of the Left, the successor party of the Communist Party since 1991.
| Parties | votes | votes (%) | seats | |||
|---|---|---|---|---|---|---|
| bgcolor=red | Italian Communist Party | 221,330 | 38.4 | 12 | ||
| bgcolor=White | Christian Democracy | 158,727 | 27.5 | 9 | ||
| bgcolor=Hotpink | Italian Socialist Party | 92,792 | 16.1 | 5 | ||
| bgcolor=Black | Italian Social Movement | 25,664 | 4.5 | 1 | ||
| bgcolor=Silver | Hunting Fishing Environment | 19,078 | 3.3 | 1 | ||
| bgcolor=Lime | Italian Republican Party | 15,828 | 2.7 | 1 | ||
| bgcolor=Olive | Green List | 12,467 | 2.2 | 1 | ||
| Rainbow Greens | 8,001 | 1.4 | align=right | - | ||
| bgcolor=maroon | Proletarian Democracy | 8,081 | 1.2 | align=right | - | |
| bgcolor=pink | Italian Democratic Socialist Party | 6,843 | 1.2 | align=right | - | |
| bgcolor=blue | Italian Liberal Party | 4,358 | 0.8 | align=right | - | |
| bgcolor= | Pensioners' List | 3,434 | 0.6 | align=right | - | |
| bgcolor= | Centre League Umbria | 1,370 | 0.2 | align=right | - | |
| Total | 576,973 | 100.0 | 30 | |||