The Battle of Fort Mose was a significant action of the War of Jenkins' Ear that took place on June 14, 1740 in Spanish Florida. Captain Antonio Salgado commanded a Spanish column of 300 regular troops, backed by the free black militia under Francisco Menéndez and allied Seminole warriors consisting of Indian auxiliaries. They stormed Fort Mose, a strategically crucial position newly held by 170 British soldiers under Colonel John Palmer. Palmer and his garrison had taken the fort from the Spanish as part of James Oglethorpe's offensive to capture St. Augustine.

Fort Mose, originally known as Gracia Real de Santa Teresa de Mose, and later as Fort Mose, or alternatively, Fort Moosa or Fort Mossa, is a former Spanish fort in St. Augustine, Florida. In 1738, the governor of Spanish Florida, Manuel de Montiano, had the fort established as a free black settlement, the first to be legally sanctioned in what would become the territory of the United States. It was designated a US National Historic Landmark on October 12, 1994.