The Battle of Cochin, sometimes referred as the Second Siege of Cochin, is a series of confrontations, between March and July 1504, fought on land and sea, principally between the Portuguese garrison at Cochin, allied to the Trimumpara Raja, and the armies of the Zamorin of Calicut and vassal Malabari states.The celebrated heroics of the tiny Portuguese garrison, led by Duarte Pacheco Pereira, fendsoff an invading army several hundred times bigger.

It proves a humiliating defeat for the Zamorin of Calicut.

He not only fails to conquer Cochin, but his inability to crush the tiny opposition undermines the faith of his vassals and allies.

The Zamorin loes much of his traditional authority over the Malabar states of India in the aftermath.

The preservation of Cochin secures the continued presence of the Portuguese in India.