N84 road
Bóthar N84
Route information
Length	73.545 km (45.699 mi)
Location
Country	Ireland
Primary destinations	County Galway Galway Cloonboo Headford County Mayo Shrule Kilmaine Ballinrobe Partry Castlebar
Highway system
Roads in Ireland Motorways Primary Secondary Regional

The N84 road is a national secondary road in Ireland. It is a major route in the West connecting Galway city with Castlebar. The route is of poor quality with a few short good sections in County Mayo between Ballintubber and Ballinrobe. Ballinrobe has become a bottleneck on the route in recent years with up to 8,000 vehicles passing through the town's one-way streets. A bypass for the town is in the planning. The R307 connects the N84 from the N5 Castlebar bypass, into Castlebar centre.^[1]

• Galway – Cloonboo – Headford – Shrule – Kilmaine – Ballinrobe – Partry – Castlebar

• Roads in Ireland
• Motorways in Ireland
• National primary road
• Regional road

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