Baggotrath Castle or Baggotsrath Castle, was a medieval castle on present day Baggot Street in Dublin city centre. It was built in the late thirteenth century. During the English Civil War, possession of the castle, described as " the strongest fortress near Dublin" was of great importance to both sides, and it was largely destroyed on the eve of the Battle of Rathmines. The castle remained in a ruinous condition until the early nineteenth century when Dublin Corporation demolished it. No trace of it remains today, but it is known to have been at the present 44-46 Upper Baggot Street, facing Waterloo Road.