Rhoscrowther was a village, ecclesiastical parish and civil parish in Pembrokeshire, Wales on the south shore of the Milford Haven Waterway. The placename is Welsh and perhaps means "crwth-player's moor". It is part of the community of Angle.

The Pembroke Refinery is an oil refinery situated on the Pembrokeshire coast in Wales at Rhoscrowther in the community of Angle. It first came on stream in 1964 and was Regent/Texaco's only British refinery. The refinery occupies a prominent position on the south bank of the Milford Haven Waterway and can be seen for many miles. Around a quarter of the site is within the Pembrokeshire Coast National Park which was created in 1952.