| Election Name: | 1858 Portuguese legislative election |
| Country: | Portugal |
| Flag Year: | 1830 |
| Type: | Parliamentary |
| Previous Election: | 1856 Portuguese legislative election |
| Previous Year: | 1856 |
| Next Election: | 1860 Portuguese legislative election |
| Next Year: | 1860 |
| Majority Seats: | 82 |
| Election Date: | 2 May 1858 |
| Colour2: | 00BFFF |
| Leader Since2: | 1856 |
| Last Election2: | 41 seats |
| Seats2: | 22 |
| Seats After2: | 19 |
| Percentage2: | 15% |
| Swing2: | 10% |
| Colour1: | 800000 |
| Leader Since1: | 1852 |
| Last Election1: | 116 seats |
| Seats1: | 138 |
| Seats After1: | 22 |
| Percentage1: | 85% |
| Swing1: | 13% |
| Colour3: | FF8C00 |
| Last Election3: | 5 seats |
| Seats3: | 2 |
| Seats After3: | 3 |
| Percentage3: | 1% |
| Swing3: | 2% |
| Posttitle: | Prime Minister after election |
| After Party: | Historic |
Legislative elections were held in Portugal on 2 May 1858.
| Party | Votes | % | Seats |
|---|---|---|---|
| Historic | 85.0% | 138 | |
| Cartista and Miguelistas | 15.0% | 24[1] | |
| Total | 100.0% | 162 | |
| align=left colspan=4 | Note: Table incomplete. | ||
| align=left colspan=4 | Source:[2] [3] | ||
