North Circular Road, Dublin

R101 road shield}}
R101 road
Bóthar R101
NCRWilliamM.jpg
A section of the North Circular Road, near Phibsborough
Route information
Length5.6 km (3.5 mi)
Existed1763–present
Location
CountryIreland
Highway system

The North Circular Road (Irish: An Cuarbhóthar Thuaidh), designated as the R101 regional road, is an important thoroughfare on the northside of Dublin, in Ireland. It is the northside equivalent of the South Circular Road.