The Battle of Orbaizeta was fought from 15 to 17 October 1794 during the War of the Pyrenees, between the French Army of the western Pyrenees led by Bon-Adrien Jeannot de Moncey and Spanish forces under the command of Pedro Téllez-Girón, 9th Duke of Osuna. Part of the wider French Revolutionary Wars, this engagement was fought over a wide area to the northwest and northeast of Pamplona in Navarre and ended in a French victory. The Spanish defenders gave up territory to the north of Pamplona, including a number of strategic locations.

The War of the Pyrenees, also known as War of Roussillon or War of the Convention, was the Pyrenean front of the First Coalition's war against the First French Republic. It pitted Revolutionary France against the kingdoms of Spain and Portugal from March 1793 to July 1795 during the French Revolutionary Wars.