The Battle of Quebracho Herrado, fought on 28 November 1840 in the east of Córdoba Province, Argentina, was a victory for the Argentine federal army, led by former Uruguayan president, Brigadier Manuel Oribe over the Unitarian army led by Brigadier Juan Lavalle, during the Argentine Civil Wars.

The Coalition forces numbered about 2,000 men under the command of Colonel Major Gregorio Aráoz de Lamadrid.

He was held up for a month by indecision and by the tenacious defense of López and his deputy, Lieutenant Colonel Jacinto Andrada.

Lavalle left Santa Fe on 18 November and headed towards Romero, closely pursued by the forces of Oribe and Juan Pablo Lopez.

Oribe had made a march that is perhaps unique to the history of Argentina, covering about 150 kilometres (93 mi) in two days through a desert region.

Its rapid charge arrested the Federal cavalry of the left wing, under the orders of Colonel Hilario Lagos, some distance from the battlefield, but failed to make it retreat.

On the other federal wing, however, the cavalry led by Colonel Major[a] Ángel Pacheco, including the first division of Santa Fe led by commander Andrada, easily overcame the Unitarian cavalry on the left under Colonel José María Vilela, and went on to attack the Unitarian army reserves.

More than 500 men were killed during the battle and more than a thousand Unitarian soldiers were taken prisoner, as the cavalry were on foot and could no longer protect the infantry.

The federal army also captured several hundred civilians, who accompanied Lavalle from Buenos Aires and Santa Fe.

It was not absolutely decisive, but the situation turned dramatically in favor of the federal party, who would eventually triumph in the Battle of Caseros in 1852.