The village of Rosslare Harbour, also known as Ballygeary, grew up to serve the needs of the harbour of the same name, first developed in 1906 by the Great Western Railway and the Great Southern and Western Railway to accommodate steamferry traffic between Great Britain and Ireland. This port also serves France and Spain, traffic is mainly roll-on roll-off (RoRo). Rosslare Harbour railway station opened on 30 August 1906.

Rosslare Europort is a modern seaport located at Rosslare Harbour in County Wexford, Ireland, near the southeasternmost point of the island of Ireland. The port is the primary Irish port serving the European Continent with 36 direct services to the Continent weekly. It handles passenger and freight ferries to and from Cherbourg, Dunkirk and St Malo/Roscoff, in France, Bilbao in Spain and Fishguard and Pembroke Dock in the United Kingdom. Since July 2022, a new freight route between Rosslare and Zeebrugge, Belgium was introduced by Finnlines for a twice weekly ro-ro service between the two ports.