The Howth Tram on the Hill of Howth Tramway was a tram which served Howth Head, near Dublin, Ireland. The termini were at Sutton railway station, by the entrance to the peninsula, and Howth railway station by the village and harbour of Howth.

The Great Northern Railway (Ireland) (GNR(I) or GNRI) was an Irish gauge (1,600 mm (5 ft 3 in)) railway company in Ireland. It was formed in 1876 by a merger of the Irish North Western Railway (INW), Northern Railway of Ireland, and Ulster Railway. The governments of Ireland and Northern Ireland jointly nationalised the company in 1953, and the company was liquidated in 1958: assets were split on national lines between the Ulster Transport Authority and Córas Iompair Éireann.