Eddystone Rock (, meaning "Eddies Rock") is a rock and reef located to the north of Falkland Sound in the Falkland Islands. It is 44 m (144 ft) high. There is a lighthouse here, which is named after a more famous light of the same name in England.
Some of the first people to sight the rock were the crew of Louis Antoine de Bougainville's ship, who named it the "Tower of Bissy".
Lieut. Lowcay during his 1837 survey of the Falkland Islands noted in his journal: