Pedro Antonio de Cevallos Cortés y Calderón, also spelled Ceballos, was a Spanish military Governor of Buenos Aires between 1757 and 1766, and the first Viceroy of the Río de la Plata in 1776.
The Spanish-Portuguese War, also known as the Second Cevallos expedition, was fought between 1776 and 1777 over the border between Spanish and Portuguese South America.