The club was founded in 1904 and was originally known as the Railway and Steam Packet Athletic and Social Union.

The club organises teams in various sports and activities including cricket,[1] field hockey, indoor hockey,[2] rugby union,[4][6] association football,[7] tennis,[8] bowls[5][3] and bridge.

Railway Union women's field hockey team also represented Ireland in the 2014 EuroHockey Club Champions Cup.

During this era the team featured, among others, Cecelia and Isobel Joyce, Emer Lucey, Nicola Evans, Kate McKenna, Jeamie Deacon and Grace O'Flanagan.

[37] Railway Union's reserve women's field hockey team play in the Irish Junior Cup.

[7] Source:[62] Railway Union Sports Club is based at Park Avenue.