The R132 road is one of Ireland's newest regional roads, having been classified following the opening M1 motorway which by-passes most of the old N1 route. The R132 is 98.9 kilometres (61.5 mi) long.
The R135 road is one of Ireland's newest regional roads, being a reclassification of those sections of the former N2 which were bypassed when the N2(M2) Ashbourne By-Pass dual carriageway opened in 2006, and when the Carrickmacross, Castleblayney & Monaghan bypasses were completed.
The R108 road is a regional road in Ireland, linking Drogheda in County Louth to Christchurch Place, Dublin.
The R448 road is a regional road in Ireland. It is the designation given to the former N9 national primary road when it was bypassed by the M9 motorway.
The R125 road is a regional road in Ireland, linking Kilcock on the County Meath / County Kildare border to Swords in County Dublin via the towns of Dunshaughlin and Ratoath.
The R147 is a regional road in Ireland. Its first section runs from St Peters Church in Phibsborough, Dublin to its junction with the M50. It then follows the route of a former section of the N3 between Clonee and Kells. It serves as an alternative route for non-motorway traffic and traffic wishing to avoid tolls on the M3.
The R107 road is a regional road in north Dublin, Ireland with a length of 10.5 kilometres (6.5 mi). It traverses a route from Fairview to Malahide, via Coolock, Balgriffin, and ultimately reaches the western edge of Portmarnock. Its main component is the Malahide Road.
The R104 road is a regional road in north Dublin, Ireland. The road passes through Finglas, Santry, and Coolock, along the northern edge of Raheny and finishes at the coast in Kilbarrack.
The R105 road is a regional road in north Dublin, Ireland. It travels from the city centre to Howth, and loops at both ends; the road fully encircles Howth Head. Along the way, the road passes through Fairview, the western end of Clontarf, Killester, Raheny, the coastal edge of Kilbarrack and Sutton. Its biggest component is Howth Road.
The R106 road is a regional road in north Dublin, Ireland. It runs from Sutton, passing Baldoyle, Portmarnock and Malahide before finishing in Swords.
The R121 road is a regional road in south County Dublin and Fingal, Ireland.
The R122 road is a regional road in Dublin, Ireland.
The R123 road is a regional road in Fingal, Ireland.
The R124 road is a regional road in Fingal, Ireland.
The R126 road is a regional road in Fingal, Ireland.
The R127 road is a regional road in Fingal, Ireland.
The R129 road is a regional road in Fingal, Dublin, Ireland.
The R130 road is a regional road in Fingal, Ireland.
The R809 road is a regional road in three sections in Dublin and Fingal, Ireland. It connects the R807 in Bettyglen to the R105 in Sutton following a roughly semicircular path that runs north, then east, then south, connecting one point on the coast road of Dublin Bay with another point, further northeast.
The R139 road is a regional road in Ireland, located in the east of Dublin.
