| Ballyboy | |
| Native Name: | Baile Átha Buí (Irish) |
| Settlement Type: | Barony |
| Pushpin Map: | Ireland |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | Ireland |
| Subdivision Type1: | County |
| Subdivision Name1: | Offaly |
| Area Total Km2: | 131.11 |
| Area Total Sq Mi: | 50.62 |
Ballyboy is a barony in County Offaly (formerly King's County), Ireland.
Ballyboy barony derives its name from the village of Ballyboy (Irish Baile Átha Buí, "settlement of the yellow ford").[1]
Ballyboy barony is located in central County Offaly. The Silver River flows through it.
Below is a list of settlements in Ballyboy barony: