The siege of St. Augustine occurred in Queen Anne's War during November and December 1702. It was conducted by English colonists from the Province of Carolina and their Indian allies, under the command of governor of Carolina James Moore, against the Spanish colonial fortress of Castillo de San Marcos at St. Augustine, in Spanish Florida.

After destroying coastal Spanish communities north of St. Augustine, Moore's forces arrived at St. Augustine on 10 November, and immediately began siege operations. The Spanish governor, Jos de Ziga y la Cerda, had advance warning of their arrival, and withdrew civilians and food supplies into the fortress, and also sent messengers to nearby Spanish and French communities for relief.

The English guns did little damage to the fortress walls, prompting Governor Moore to send an appeal to Jamaica for larger guns. The Spanish calls for relief were successful; a fleet sent from Havana, Cuba landed troops nearby on 29 December. Moore lifted the siege the next day, and was forced to burn many of his boats before retreating to Charles Town in disgrace.



James Moore (c. 1650 – 1706) was an Irish colonial administrator and military officer who served as the governor of Carolina from 1700 to 1703. He is best known for leading several invasions of Spanish Florida during Queen Anne's War, including attacks in 1704 and 1706 which wiped out most of the Spanish missions in Florida. He captured and brought back to Carolina as slaves thousands of Apalachee Indians.