The Royal Dublin Fusiliers was an Irish infantry Regiment of the British Army created in 1881, one of eight Irish regiments raised and garrisoned in Ireland, with its home depot in Naas. The Regiment was created by the amalgamation of two British Army regiments in India - the Royal Bombay Fusiliers and Royal Madras Fusiliers - with Dublin and Kildare militia units.
Following the establishment of the independent Irish Free State in 1922, the five regiments that had their traditional recruiting grounds in the counties of the new state were disbanded.