| Election Name: | 1890 Portuguese legislative election |
| Country: | Portugal |
| Flag Year: | 1830 |
| Type: | Parliamentary |
| Previous Election: | 1889 Portuguese legislative election |
| Previous Year: | 1889 |
| Next Election: | 1892 Portuguese legislative election |
| Next Year: | 1892 |
| Majority Seats: | 77 |
| Election Date: | 30 March 1890 |
| Colour1: | 0070C0 |
| Leader Since1: | 1887 |
| Last Election1: | 38 seats |
| Seats1: | 115 |
| Seats After1: | 77 |
| Colour2: | FF0000 |
| Leader Since2: | 1885 |
| Last Election2: | 104 seats |
| Seats2: | 33 |
| Seats After2: | 71 |
| Colour3: | 228B22 |
| Leader3: | Political Directory |
| Leader Since3: | 1876 |
| Image3: | PRP |
| Last Election3: | 2 seats |
| Seats3: | 4 |
| Seats After3: | 2 |
| Posttitle: | Prime Minister after election |
| After Party: | Regenerator |
Parliamentary elections were held in Portugal on 30 March 1890.[1] The result was a victory for the Regeneration Party, which won 115 seats.[2]
| Party | Votes | % | Seats | +/– |
|---|---|---|---|---|
| Regeneration Party | 115 | +77 | ||
| Progressive Party | 33 | –71 | ||
| Portuguese Republican Party | 4 | +2 | ||
| Invalid/blank votes | – | – | – | |
| Total | 152 | 0 | ||
| Registered voters/turnout | 951,490 | – | – | |
| align=left colspan=5 | Source: Nohlen & Stöver | |||
The results exclude the six seats won at national level and those from overseas territories.[2]