Balrothery West

Balrothery West (Irish: Baile an Ridire Thiar) is a feudal title of nobility and one of the baronies of Ireland. Originally part of the Lordship of Meath, it was then constituted as part of the old county of Dublin. Today, it lies in the modern county of Fingal. The barony was created by Hugh de Lacy, Lord of Meath as his own feudal barony, held directly from himself in capite. His vassals were commonly called "De Lacy's Barons". At the heart of the former barony was the civil parish of Balrothery. The barony was later split into the baronies of Balrothery West and Balrothery East. The village of Balrothery is now located in the neighbouring barony of Balrothery East.

There are eight civil parishes in Balrothery West. Large population centres include Garristown, Naul, Oldtown and Ballyboughil.

It is bordered by the barony Balrothery East to the west, Nethercross to the south and by the county of Meath to the north and west.

It was organised soon after the Norman invasion of Ireland by Hugh de Lacy, Lord of Meath.

List of subdivisions of County Dublin

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