The Battle of Tarqui, also known as the Battle of Portete de Tarqui, took place on 27 February 1829 at Tarqui, near Cuenca, today part of Ecuador. It was fought between troops from Gran Colombia, commanded by Antonio José de Sucre, and Peruvian troops under José de La Mar. Although the Colombian troops achieved victory over the Peruvian vanguard, destroying it and forcing the rest of their forces to withdraw, they suffered heavy losses in their cavalry with the Peruvian charge, which made it difficult to continue the campaign and caused the stabilization of the front.

Antonio José de Sucre y Alcalá, known as the "Gran Mariscal de Ayacucho", was a Venezuelan general and politician who served as the president of Bolivia from 1825 to 1828. A close friend and associate of Simón Bolívar, he was one of the primary leaders of South America's struggle for independence from the Spanish Empire.