R418 road
Bóthar R418
Route information
Length	60 km (37 mi)
Location
Country	Ireland
Primary destinations	County Kildare Kilcullen leaves the R448 Athy – Joins/leaves the N78 Kilkea Passes over the M9 Castledermot – Joins/leaves the R448; Crosses the River Lerr County Carlow Crosses the River Aghlona Killerrig – (R726) Tullow, terminates near the N81 (via R725)
Highway system
Roads in Ireland Motorways Primary Secondary Regional

The R418 road is a regional road in Ireland, which runs north-south from the R448 at Kilcullen to Athy, County Kildare, and then to the N81 in Tullow, County Carlow.

En route it meets and shortly later leaves the N78 in the town of Athy, and also crosses R448 in the town of Castledermot. The section between Athy and Kilcullen was formerly part of the N78 until the latter was rerouted to Mullamast as part of the M9 motorway project.

The route is 60 km (37 mi) long.

• Roads in Ireland
• National primary road
• National secondary road

• Roads Act 1993 (Classification of Regional Roads) Order 2006 – Department of Transport