The Battle of Grenada took place on 6 July 1779 during the American Revolutionary War in the West Indies between the British Royal Navy and the French Navy, just off the coast of Grenada. The British fleet of Admiral John Byron (the grandfather of Lord Byron) had sailed in an attempt to relieve Grenada, which the French forces of the Comte D'Estaing had just captured.

Incorrectly believing he had numerical superiority, Byron ordered a general chase to attack the French as they left their anchorage at Grenada. Because of the disorganized attack and the French superiority, the British fleet was badly mauled in the encounter, although no ships were lost on either side. Naval historian Alfred Thayer Mahan described the British loss as "the most disastrous ... that the British Navy had encountered since Beachy Head, in 1690."