The N20 road is a national primary road in Ireland, connecting the cities of Cork and Limerick. Buttevant, Croom, Charleville, Mallow and Blarney are major towns along the route. A short section of the route is motorway standard and is designated as the M20 Motorway.
N20 on the dual carriageway bypass into Limerick, approaching the exit for Dooradoyle. As of 2009, this section has been designated motorway.