The R705 road is a regional road in Ireland which runs north-south from the R448 at Leighlinbridge in County Carlow and through Bagenalstown before crossing into County Kilkenny. It continues to Graiguenamanagh, passes Brandon Hill (516m) and continues south along the western side of the valley of the River Barrow until it terminates at a junction with the R700.
The route is 41 km (25 mi) long.