Cosme Pacheco ( - ), was a Peruvian Lieutenant-Colonel during the Peruvian War of Independence and revolutionary wars in Perú in the first half of the 19th century. He was assigned to the Cavalry of the Army of Peru in the Regiments of Hussars of Junín Province and the Lancers of Cusco. He participated in the military campaigns for the independence of Peru, from 1821 to 1825. He was awarded the medals of the Battle of Junin and the Battle of Ayacucho. Later, he fought in military campaigns of the south of Peru and the Upper Peru as well as in the Peruvian-Bolivian conflict, between 1825 and 1828. Retired from active military service, he was recalled to service in 1835 by the request of the Supreme Provisory Board of Government of the Republic of Peru. He actively participated in revolutions and civil wars in his country, collaborating with the highest authorities as emissary and peacemaker in the central highlands of Peru. He died in the region of his birth, Department of Cusco, of unknown causes, presumably around 1851.