Ballyhay (from Irish: Baile Hae, meaning "Hay's townland") is a townland near Donaghadee in County Down, Northern Ireland. It is situated in the civil parish of Donaghadee and the historic barony of Ards Lower. It is called Bellyhie in Ulster-Scots.
- "Ballyhay". Place Names NI. Retrieved 21 February 2013.
- M'Gimpsey Johnston, John. "Another Ulster-Scots Writer: John M'Gimpsey Johnston". Ullans: The Magazine for Ulster-Scots. Ulster-Scots Academy.