Ringhaddy (from Irish Rinn an Chadaigh, meaning "point of the covenant") is a townland on the shores of Strangford Lough, County Down, Northern Ireland. It is in the civil parish of Killinchy and the historic barony of Dufferin.
It is the home of Ringhaddy Daffodils and Ringhaddy Cruising Club. The area has become very popular for diving, due to the sinking of The Alastor, a ship which sank in 1946 due to a fire on board.
- "Ringhaddy". Place Names NI. Retrieved 21 February 2013.