Howth Head is a peninsula northeast of the city of Dublin in Ireland, within the governance of Fingal County Council. Entry to the headland is at Sutton while the village of Howth and the harbour are on the north-eastern face. Most of Howth Head is occupied by the Hill of Howth, though there are other regions, such as the tombolo at Sutton, extensive beaches on the northern shores, and small ones in other parts. The Baily Lighthouse is on the southeastern part of Howth Head. Nearby are the districts of Baldoyle and Portmarnock, and adjacent is the nature reserve of North Bull Island.

Sutton is a residential suburb on the Northside of Dublin, Ireland. It occupies the tombolo which links Howth Head to the mainland, some of the lower slopes of Howth Hill, and a little of the adjacent coasts. The area lies within the jurisdiction of Fingal County Council. There is a small commercial core at the Sutton Cross road intersection.