Three Castle Head is a headland located in County Cork, Ireland. It is situated on the south coast of the Beara Peninsula, near the town of Castletownbere. The headland is made up of three rocky outcrops, which are visible from the sea and from the nearby land. It is a popular spot for sightseeing, fishing, and birdwatching.

The area is also home to a variety of wildlife, including seals, dolphins, and whales. In the summer months between may and july, keep an eye out for basking sharks.