In the Battle of Montserrat a force of Spanish irregulars led by Joaquín Ibáñez, Baron de Eroles defended Montserrat Mountain against two Imperial French divisions under the command of Marshal Louis Gabriel Suchet. The minor action occurred during the Peninsular War, part of the Napoleonic Wars. The battle was fought near the Santa Maria de Montserrat Monastery, which is located on the mountain 36 kilometres (22 mi) northwest of Barcelona, Catalonia, Spain.

Joaquín Ibáñez Cuevas y de Valonga, 3rd Baron de Eroles and Marquis of Cañada Ibáñez was a Spanish nobleman and soldier, active in Catalonia during the Peninsular War. Shortly before his death, he was promoted to Captain general of the Army, Spain's highest military rank.