1838 in Peru

Events in the year 1838 in Peru.

Incumbents

 * Supreme Protector of the Peru-Bolivian Confederation: Andres de Santa Cruz
 * President of the Republic of North Peru: Luis Orbegoso until July 30, José de la Riva Agüero
 * President of the Republic of South Peru: Ramón Herrera y Rodado until October 12, Juan Pío de Tristán y Moscoso

Events

 * January 12 and 13 - War of the Confederation: Battle of Islay
 * July 30 - North Peru President Obregoso declares secession of his republic from the Peru-Bolivian Confederation.
 * August 21 - Battle of Portada de Guías on the outskirts of Lima
 * October - Chilean Army occupies Lima
 * November 3 - Chileans abandon Lima