Greyabbey or Grey Abbey is a small village, townland and civil parish located on the eastern shores of Strangford Lough, on the Ards Peninsula in County Down, Northern Ireland.

The Ards Peninsula is a peninsula in County Down, Northern Ireland, on the north-east coast of Ireland. It separates Strangford Lough from the North Channel of the Irish Sea. Towns and villages on the peninsula include Donaghadee, Millisle, Portavogie and Portaferry. The large towns of Newtownards and Bangor are at the mainland edge of the peninsula. Burr Point is the easternmost point on the island of Ireland.