The Burn of Ayreland (or Ireland) is a northwesterly flowing coastal stream on Mainland Orkney, Scotland, that discharges to the Clestrain Sound about two miles south of Stenness. Draining chiefly agricultural lands elevated mosses and moorland. This stream has a notable lack of turbidity and a pH level of approximately 8. Armouring of the stream bottom consists of pebbles, cobbles and occasional boulders.