| Election Name: | 1919 Portuguese legislative election |
| Country: | Portugal |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1918 Portuguese general election |
| Previous Year: | 1918 |
| Next Election: | 1921 Portuguese legislative election |
| Next Year: | 1921 |
| Seats For Election: | 163 seats to the Chamber of Deputies |
| Majority Seats: | 82 |
| Election Date: | 11 May 1919 |
| Leader1: | Afonso Costa |
| Leader Since1: | 1912 |
| Party1: | Democratic Party (Portugal) |
| Last Election1: | Boycotted |
| Seats1: | 96 |
| Seat Change1: | 96 |
| Leader2: | António José de Almeida |
| Leader Since2: | 1912 |
| Party2: | Evolutionist Party |
| Last Election2: | Boycotted |
| Seats2: | 38 |
| Seat Change2: | 38 |
| Leader3: | Manuel de Brito Camacho |
| Leader Since3: | 1912 |
| Party3: | Republican Union (Portugal) |
| Last Election3: | Boycotted |
| Seats3: | 17 |
| Seat Change3: | 17 |
| Image4: | PSP |
| Party4: | Portuguese Socialist Party |
| Last Election4: | Boycotted |
| Seats4: | 8 |
| Seat Change4: | 8 |
| Image5: | CCP |
| Leader5: | António Lino Neto |
| Leader Since5: | 1915 |
| Party5: | Catholic Centre Party (Portugal) |
| Last Election5: | 5 seats |
| Seats5: | 1 |
| Seat Change5: | 4 |
| Map Size: | 300px |
| Map2 Size: | 300px |
| Prime Minister | |
| Posttitle: | Prime Minister after election |
| Before Election: | Domingos Leite Pereira |
| Before Party: | Independent (politician) |
| After Election: | Alfredo Ernesto de Sá Cardoso |
| After Party: | PD |
Parliamentary elections were held in Portugal on 11 May 1919.[1] The three main parties that boycotted the 1918 elections returned to contest the elections. The result was a victory for the Democratic Party, which won 86 of the 163 seats in the House of Representatives and 36 of the 71 seats in the Senate.[2] [3]
| Party | House of Representatives | Senate | ||||||
|---|---|---|---|---|---|---|---|---|
| Votes | % | Seats | +/– | Votes | % | Seats | +/– | |
| Democratic Party | 96 | New | 36 | New | ||||
| Evolutionist Party | 38 | New | 27 | New | ||||
| Republican Union | 17 | New | New | |||||
| Portuguese Socialist Party | 8 | New | 0 | New | ||||
| Catholic Centre Party | 1 | –4 | 1 | 1 | ||||
| Other parties and independents | 13 | +8 | 7 | –23 | ||||
| Invalid/blank votes | – | – | – | – | – | – | ||
| Total | 163 | +8 | 71 | –2 | ||||
| Registered voters/turnout | 500,000 | – | – | 500,000 | – | – | ||
| align=left colspan=9 | Source: Nohlen & Stöver | |||||||