Aignish (Scottish Gaelic: Aiginis) is located northwest of Knock and east of Stornoway on the east coast of the Isle of Lewis, in the Outer Hebrides, Scotland. The township is at the island side of the isthmus connecting to the Eye peninsula. Aignish is within the parish of Stornoway, and is situated on the A866 between Stornoway and Portnaguran.