The First Battle of Topolobampo was a bloodless engagement and one of the few naval battles of the Mexican Revolution. The small action occurred off Topolobampo, Mexico and involved three gunboats, two from the Mexican Navy and another which mutinied from the armada and joined the rebel Constitutionalists. It was fought on the morning of March 4, 1914 and was the first battle of the naval campaign in the Gulf of California.