Ballintoy Harbour is a small fishing harbour on the North Antrim coast in County Antrim, Northern Ireland, situated along the Causeway Coastal Route approximately 17 miles north-east of Coleraine.

It sits at the foot of Knocksaughey hill, reached by a narrow, steep road that also passes the entrance to Larrybane and the famous Carrick-a-Rede Rope Bridge. The harbour is described geologically as a "raised beach."

The site is widely recognised as a filming location for the television series Game of Thrones and draws visitors as one of the more scenic stops along the Causeway Coast. An Easter Sunday dawn service is held at the harbour annually.