| Country: | Portugal |
| Type: | presidential |
| Previous Election: | 1958 Portuguese presidential election |
| Previous Year: | 1958 |
| Next Election: | 1972 Portuguese presidential election |
| Next Year: | 1972 |
| Election Date: | 25 July 1965 |
| Image1: | Fotografia oficial do Presidente da República Américo Tomás.jpg |
| Candidate1: | Américo Tomás |
| Party1: | National Union (Portugal) |
| Electoral Vote1: | 556 |
| Percentage1: | 100% |
| President | |
| Before Election: | Américo Tomás |
| Before Party: | National Union (Portugal) |
| After Election: | Américo Tomás |
| After Party: | National Union (Portugal) |
Presidential elections were held in Portugal on 25 July 1965, during the Estado Novo regime of Prime Minister António de Oliveira Salazar, following parliamentary elections in the same year. It was the first presidential election to be held by the National Assembly of Portugal rather than by direct popular ballot and, subsequently, rear admiral Américo Tomás was universally endorsed for a second seven-year term. His only opponent in the preceding 1958 election, general Humberto Delgado, had been assassinated in early 1965 following an attempt to return to Portugal from exile, possibly to contest Tomás' election for a second time.