| People's Socialist Front | |
| Native Name: | Frente Socialista Popular |
| Colorcode: | Red |
| Founder: | Manuel Serra |
| Foundation: | 1974 |
| Dissolution: | 7 July 2004 |
| Ideology: | Socialism |
| Position: | Left-wing |
| Split: | Socialist Party |
| Country: | Portugal |
The People's Socialist Front or Popular Socialist Front (Portuguese: Frente Socialista Popular, FSP) was a socialist political party in Portugal, founded in 1974. It was a breakaway group from the Socialist Party.
The group was founded in December 1974 by Manuel Serra,[1] a Marxist who had previously attempted to become leader of the Socialist Party. He had been imprisoned for several years during the authoritarian Estado Novo regime.[2] Under his leadership, the FSP took place in violent demonstrations, including riots in Setúbal.[3]
In the 1975 Constituent Assembly election, the FSP received less than 5% of the vote and won zero seats.[4]
The FSP ran candidates in the 1976 legislative election,[5] and participated in the 1976 local election in coalition with the Portuguese Communist Party and the Portuguese Democratic Movement inside the Electoral Front United People.
On 7 July 2004, after several years of inactivity, the party was declared extinct by the Portuguese Constitutional Court.