'Presidents of Portugal\'
| Alignment | Leader | Position | Start | End | 
|  | Manuel José de Arriaga | Proclamation of the Portuguese Republic | 1910 | 1912 | 
|  | Manuel José de Arriaga | President | 1912 | 1915 | 
|  | Bernardino Machado | President | 1915 | 1917 | 
|  | Sidónio Pais | Gen. President-Dictator | 1917 | 1918 | 
|  | Joăo do Canto e Castro | Provisional President | 1918 | 1919 | 
|  | António José de Almeida | President | 1919 | 1923 | 
|  | Teixeira Gomes |  | 1923 | 1925 | 
|  | Bernardino Machado |  | 1925 | 1926 | 
| Military | António de Fragoso Carmona | Gen. Dictator | 1926 | 1928 | 
| Military | António de Fragoso Carmona | President | 1928 | 1932 | 
| Military | António de Fragoso Carmona | Presidency under dictator António de Oliveira Salazar | 1932 | 1951 | 
| Military | Francisco Craveiro Lopes | Presidency under dictator António de Oliveira Salazar | 1951 | 1958 | 
| Military | Américo Deus Tomás |  | 1958 | 1974 | 
| Military | António de Spínola | military coup of April 25 - Carnation revolution | 1974 | 1974 | 
| Military | Francisco da Costa Gomes |  | 1974 | 1976 | 
| Military | António Ramalho Eanes |  | 1976 | 1986 | 
| Socialist | Mário Soares |  | 1986 | 1996 | 
| Socialist | Jorge Sampaio |  | 1996 | Present |