Leixlip Louisa Bridge is a railway station in the north-eastern corner of County Kildare, Ireland. It is one of two stations that serve the civil parish of Leixlip, the other being Leixlip Confey. Both stations lie on the Dublin to Maynooth commuter route. It is one of the few stations in the Iarnród Éireann network in which the station building is located directly over the platforms, on a bridge.

Iarnród Éireann, or Irish Rail, is the operator of the national railway network of Ireland. Established on 2 February 1987, it is a subsidiary of Córas Iompair Éireann (CIÉ). It operates all internal InterCity, Commuter, DART and freight railway services in the Republic of Ireland, and, jointly with Northern Ireland Railways, the Enterprise service between Dublin and Belfast. In 2019, IÉ carried a record peak of 50 million passengers, up from 48 million in 2018.