Manuel Joaquín de Montiano y Sopelana was a Spanish General and colonial administrator who served as Royal Governor of La Florida during Florida's First Spanish Period and as Royal Governor of Panama. He defended Florida from an attack by British forces in 1740 and launched his own unsuccessful Invasion of Georgia during the War of Jenkins' Ear.

In the 1742 Invasion of Georgia, Spanish forces based in Florida attempted to seize and occupy disputed territory held by the British colony of Georgia. The campaign was part of a larger conflict which became known as the War of Jenkins' Ear. Local British forces under the command of the Governor James Oglethorpe rallied and defeated the Spaniards at the Battle of Bloody Marsh and the Battle of Gully Hole Creek, forcing them to withdraw. Britain's ownership of Georgia was formally recognized by Spain in the subsequent Treaty of Madrid.