The Battle of Barrosa took place on March 5, 1811 between Anglo-Spanish and French forces as part of the Peninsular war.

The Barrosa beach is in Chiclana de la Frontera , province of Cádiz, Spain. The battle, or at least the major engagement, seems to have taken place at the "Pinar de los Franceses", a marshy area about 15 km (10 miles) east of the Barrosa beach, where the road to Cadiz and San Fernando goes between a marshy area and a pine forest.