Ballintoy Harbour is a small rural boat harbour on the north Antrim coast of Northern Ireland, situated on the east side of Ballintoy Point roughly five miles west of Ballycastle.

Described as a "raised beach," it sits alongside the B15 coast road between Carrick-a-Rede Rope Bridge and the Giant's Causeway on the Causeway Coastal Route.

The harbour consists of a concrete-faced outer harbour leading into an inner stone harbour that shelves toward a slipway; local small open boats use it during summer months.

The harbour is accessed via a narrow, steeply descending road off the Whitepark Road, unsuitable for coaches, caravans, or large vehicles.

It serves as a trailhead for the Causeway Coast Way, with walking routes heading west past White Park Bay toward the Giant's Causeway and Bushmills.

The harbour has also gained wider recognition as a filming location for the HBO series Game of Thrones, contributing to its popularity as a stopping point along the coastal route.