Larne is a town in County Antrim, Northern Ireland. It has been used as a port for over 1000 years, and is now mostly used by freight. Ferries sail to Campbeltown in Scotland. Notable buildings in the town include the ruins of sixteenth century Olderfleet Castle and Larne Round Tower.

Both fossils and prehistoric human artefacts have been found in the sea cliffs around Larne. The town is also known as the birthplace of the author and poet Amanda M’Kittrick Ros.