Pedro Nolasco Martín José María de la Candelaria Francisco Javier Ampudia y Grimarest (January 30, 1805 – August 7, 1868) was born in Havana, Cuba, and served Mexico as a Northern army officer for most of his life.

Briefly appointed as commander-in-chief of the Mexican Army of the North in 1846, Ampudia was removed from command following the brutal public execution of a local guerrilla leader on his personal orders.

As a conservador (a member of Mexico's conservative faction), Ampudia was quickly relegated to a staff position in favor of his liberal rival, General Mariano Arista.

Trapped in the city plaza and bombarded by U.S. forces with howitzers, general Ampudia chose to request a flag of truce and retreat his battered army.

His failure to defend that city led to his removal by Santa Anna, and like his former superior, Arista, Ampudia found himself spending most of the rest of the war in administrative duties, though he was in command of portions of the Mexican artillery at the Battle of Buena Vista in 1847.