| Type: | Townland |
| Official Name: | Ballyhay |
| Country: | Northern Ireland |
| Lieutenancy Northern Ireland: | County Down |
| Irish Name: | Baile Hae |
Ballyhay ([1]) is a townland near Donaghadee in County Down, Northern Ireland. It is in the civil parish of Donaghadee and the historic barony of Ards Lower.[1] It is called Bellyhie in Ulster-Scots.[2]
Ballyhay is a rural farming community with much land used for arable and pasture farming. There are records of a church flourishing in the area since the late 13th to early 14th centuries.
Transport is available via the Number 7 bus (Moss road/Windmill road, Killaughey road) which travels from Millisle to Belfast via the Moss road.