Erris Head (Irish: Ceann Iorrais) is a promontory at the northernmost tip of the Mullet Peninsula, located in the barony of Erris in northwest County Mayo, Ireland. It is a well known and recognised landmark used by mariners and weather forecasters alike. It is also a very scenic viewpoint, with an unspoilt view of the Atlantic Ocean and steep rocky cliffs. It is not served by any road and can only be reached by crossing a number of fields.