The Battle of Cádiz was an attempt by English and Dutch forces to seize the southern Spanish port of Cádiz in 1702 during the War of the Spanish Succession. The Andalusian port of Cádiz served as the centre of Spanish trade with its American colonies. As such, the port's capture would not only help to sever Spain's links with her empire in the Americas, but it would also provide the Allies with a strategically important base from which the English and Dutch navies could control the western Mediterranean Sea.

Cádiz is a city in Spain and the capital of the Province of Cádiz, in the autonomous community of Andalusia. It is located in the southwest of the Iberian Peninsula off the Atlantic Ocean separated from neighbouring San Fernando by a narrow isthmus.