| Carnagh West Ringfort | |
| Native Name: | Ráth na Carnaí Thiar |
| Native Language: | ga |
| Coordinates: | 53.5133°N -8.0441°W |
| Location: | Carnagh West, Lecarrow, County Roscommon, Ireland |
| Built: | Stone Age (before 2000 BC) |
| Elevation: | 59m (194feet) |
| Designation1: | National Monument of Ireland |
| Designation1 Offname: | Carnagh West |
| Designation1 Number: | 487 |
Carnagh West Ringfort is a ringfort and National Monument located in County Roscommon, Ireland.[1]
Carnagh West Ringfort is located halfway between Lough Funshinagh and Lough Ree.
Carnagh West Ringfort is a rath or ringfort with foundations of rectangular huts. The double-walling suggests a Stone Age date. The townland name is from the Irish carnach, "abounding in heaps/cairns", due to the large number of raths in the area.