| Election Name: | 1913 Portuguese legislative election |
| Country: | Portugal |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1911 Portuguese Constituent National Assembly election |
| Previous Year: | 1911 |
| Next Election: | 1915 Portuguese legislative election |
| Next Year: | 1915 |
| Seats For Election: | 153 seats to the Chamber of Deputies |
| Majority Seats: | 77 |
| Election Date: | 16 November 1913 |
| Leader1: | Afonso Costa |
| Leader Since1: | 1912 |
| Party1: | PD |
| Last Election1: | Did not contest |
| Seats1: | 68 |
| Seat Change1: | New party |
| Leader2: | António José de Almeida |
| Leader Since2: | 1912 |
| Party2: | PRE |
| Last Election2: | Did not contest |
| Seats2: | 41 |
| Seat Change2: | New party |
| Leader4: | Manuel de Brito Camacho |
| Leader Since4: | 1912 |
| Party4: | PUR |
| Last Election4: | Did not contest |
| Seats4: | 36 |
| Seat Change4: | New party |
| Image5: | PSP |
| Party5: | PSP |
| Last Election5: | 2 seats |
| Seats5: | 2 |
| Colour5: | FF0000 |
| Map Size: | 300px |
| Map2 Size: | 300px |
| Map2 Caption: | Senate |
| Posttitle: | Prime Minister after election |
| Before Election: | Afonso Augusto da Costa |
| Before Party: | PD |
| After Election: | Afonso Augusto da Costa |
| After Party: | PD |
Parliamentary elections were held in Portugal on 16 November 1913. These were the first elections under the new Constitution, approved in 1911, that created a Bicameralism legislature. The result was a victory for the Democratic Party, which won 68 of the 153 seats in the Chamber of Deputies and 24 of the 66 seats in the Senate.
| Party | Chamber of Deputies | Senate | |||||
|---|---|---|---|---|---|---|---|
| Votes | % | Seats | +/– | Seats | +/– | ||
| Democratic Party | 68 | New | 24 | New | |||
| Evolutionist Party | 41 | New | 16 | New | |||
| Republican Union | 36 | New | 18 | New | |||
| Portuguese Socialist Party | 2 | 0 | 2 | New | |||
| Other parties and independents | 6 | +3 | 6 | New | |||
| Invalid/blank votes | – | – | – | – | |||
| Total | 150,000 | 100 | 153 | -81 | 66 | ||
| Registered voters/turnout | 397,038 | 37.8 | – | – | – | ||
| Source: Eleições 1913 | |||||||