What is the road called between Cork and Dublin?

Answer 1

Initially as you leave Dublin for Cork you are on the N7. This then becomes the M7, which is actually the Dublin to Limerick motorway. After passing Portlaoise, in the midlands of Ireland, the M8 starts and heads to Cork.

Answer 2

The entire road does not have one designation. It is the M1 from Belfast to near Hillsborough. From there it is the A1 to just north of Dundalk. It becomes the M1, though not the same M1, from there until Dublin. At the start of the Dublin Port Tunnel the M1 continues into it and comes out at Dublin port ending there. A lot of traffic will stay overground, and in doing so they travel along the N1 to the city centre.

Answer 3

It has two parts. Initially out of Cork it is the N8. It then joins the N7 at Portlaoise, which comes from Limerick, and continues onto Dublin as the N7. As these roads are now to motorway standard they are the M7 and M8.