Juan Jacobo Fernandez was a Spanish Franciscan missionary priest who lived during the nineteenth century. Born in 1808, he served as the cook for a Franciscan friary in Damascus. During the civil conflict in 1860, he was killed alongside several companions, including the Massabki brothers and other friars, while they were praying within their parish. He is recognized as one of the Martyrs of Damascus, a group of eleven individuals who died for their faith during the unrest in Mount Lebanon and Syria.