The Battle of Junín is a military engagement of the Peruvian War of Independence, fought in the highlands of the Junín Region on August 6, 1824.

The preceding February the royalists had regained control of Lima, and having regrouped in Trujillo, Simón Bolívar in June led his rebel forces south to confront the Spanish under Field Marshal José de Canterac.

The two armies meet on the plains of Junín, northwest of the Jauja Valley.