| Election Name: | 2005 Umbrian regional election |
| Country: | Umbria |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2000 Umbrian regional election |
| Previous Year: | 2000 |
| Next Election: | 2010 Umbrian regional election |
| Next Year: | 2010 |
| Seats For Election: | All 30 seats to the Regional Council of Umbria |
| Election Date: | April 3–4, 2005 |
| Leader1: | Maria Rita Lorenzetti |
| Party1: | Democrats of the Left |
| Alliance1: | The Union (political coalition) |
| Color1: | EF3E3E |
| Last Election1: | 20 seats, 56.4% |
| Seats1: | 19 |
| Seat Change1: | 1 |
| Popular Vote1: | 316,776 |
| Percentage1: | 63.0% |
| Swing1: | 6.6% |
| Leader2: | Pietro Laffranco |
| Party2: | Forza Italia |
| Alliance2: | House of Freedoms |
| Last Election2: | 10 seats, 39.1% |
| Seats2: | 11 |
| Seat Change2: | 1 |
| Popular Vote2: | 169,176 |
| Percentage2: | 33.7% |
| Swing2: | 5.4% |
| President | |
| Before Election: | Maria Rita Lorenzetti |
| Before Party: | Democrats of the Left |
| After Election: | Maria Rita Lorenzetti |
| After Party: | Democrats of the Left |
The Umbrian regional election of 2005 took place on 3–4 April 2005.
Incumbent Maria Rita Lorenzetti (Democrats of the Left, then Democratic Party) defeated Pietro Laffranco (National Alliance) by a landslide to remain as President of Umbria.
| Candidates & parties | votes | votes (%) | seats reg. list | seats prov. lists | |
|---|---|---|---|---|---|
| Maria Rita Lorenzetti | 316,770 | 63.00 | 3 | 16 | |
| The Olive Tree | 207,417 | 45.19 | → | 12 | |
| Communist Refoundation Party | 42,473 | 9.25 | → | 2 | |
| Party of Italian Communists | 24,086 | 5.25 | → | 1 | |
| Federation of the Greens | 10,664 | 2.32 | → | 1 | |
| UDEUR | 5,592 | 1.22 | → | 0 | |
| Pietro Laffranco | 169,176 | 33.65 | 1 | 10 | |
| Forza Italia | 72,480 | 15.79 | → | 5 | |
| National Alliance | 62,903 | 13.70 | → | 4 | |
| Union of Christian and Centre Democrats | 22,645 | 4.93 | → | 1 | |
| Marcello Ramadori | 9,530 | 1.90 | - | - | |
| Socialist Party – New PSI | 6,735 | 1.47 | → | 0 | |
| Luca Romagnoli | 7,348 | 1.46 | - | - | |
| Social Alternative | 3,998 | 0.87 | → | 0 | |
| Total | 502,824 | 100.00 | 4 | 26 |