| Eleuterio Fernández Huidobro | |
| Order: | Minister of Defence of Uruguay |
| Term Start: | July 18, 2011 |
| Term End: | August 5, 2016 |
| Predecessor: | Luis Rosadilla |
| Successor: | Jorge Menendez |
| Birth Date: | 14 March 1942 |
| Birth Place: | Montevideo, Uruguay |
| Death Place: | Montevideo, Uruguay |
| Party: | Broad Front |
Eleuterio Fernández Huidobro (March 14, 1942 – August 5, 2016) was an Uruguayan politician, journalist, and writer. He was popularly known as "El Ñato". A former member of the National Liberation Movement (Tupamaros) (MLN-T), he was in prison during the military dictatorship for twelve years (1973-1985).
He was the Minister of Defense from 2011 until his death.[1] [2] On August 5, 2016, he died in office at the age of 74.[3]
His 12-year tenure in prison during Uruguay's military dictatorship with Mauricio Rosencof and José Mujica was the basis for the film A Twelve-Year Night, in which he was portrayed by Alfonso Tort.