Saint Aemilianus, also known as Saint Aemilian, was a Christian martyr who lived during the 3rd century. He is venerated in the Roman Catholic Church and is known for his steadfast faith in the face of persecution. His feast day is celebrated on July 16. Aemilianus is often associated with the region of Córdoba in Spain, where he is believed to have been martyred. His life and sacrifice are commemorated in various hagiographies, which recount his dedication to spreading Christianity despite the dangers he faced.