| Fermín Palacios | |
| Office: | Acting President of El Salvador |
| Term Start: | February 1, 1844 |
| Term End: | February 7, 1844 |
| Predecessor: | Pedro José Arce y Fagoaga |
| Successor: | Francisco Malespín |
| Term Start1: | February 16, 1845 |
| Term End1: | April 25, 1845 |
| Successor1: | Joaquín Eufrasio Guzmán |
| Term Start2: | February 1, 1846 |
| Term End2: | February 21, 1846 |
| Predecessor2: | Joaquín Eufrasio Guzmán |
| Successor2: | Eugenio Aguilar |
| Term Start3: | July 12, 1846 |
| Term End3: | July 21, 1846 |
| Predecessor3: | Eugenio Aguilar |
| Successor3: | Eugenio Aguilar |
| Birth Place: | San Salvador, El Salvador |
| Profession: | politician |
Fermín Palacios was president of El Salvador, four times between 1844 and 1846. He was born in San Salvador.