R178 road (Ireland)
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|---|---|
| Bóthar R178 | |
![]() Main Street, Carrickmacross, on the R178 | |
| Location | |
| Country | Ireland |
| Highway system | |
The R178 road is a regional road in Ireland. It runs from Dundalk, County Louth via Carrickmacross, County Monaghan and Shercock to Virginia, County Cavan.

