| Settlement Type: | Village |
| Mountbolus | |
| Native Name: | Irish: Cnocán Bhólais |
| Native Name Lang: | ga |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Coordinates: | 53.1959°N -7.6287°W |
| Unit Pref: | Metric |
| Elevation M: | 91 |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Leinster |
| Subdivision Type2: | County |
| Subdivision Name2: | County Offaly |
Mountbolus [1] is a small village in County Offaly, Ireland. It is in the parish of Killoughey situated at the foot of the Slieve Bloom Mountains, 13 km south-west of Tullamore.
It has a church, a national (primary) school and one public house.
The area's GAA club is Kilcormac/Killoughey GAA. When Offaly won the 1998 All-Ireland Senior Hurling Championship, the goalkeeper on the team was Stephen Byrne from the club.[2]