Chapelizod House, known as the Viceregal Lodge, was a late mediaeval residence in Chapelizod, at the time a village outside Dublin (but now a suburb) which in the 1680s was used as a temporary residence for the Lord Lieutenant of Ireland following a fire which had destroyed the Viceregal Apartments in Dublin Castle. Contemporary accounts stated that the Viceroy and Vicereine abandoned the use of the house after a short time and moved to live in a property elsewhere in the city because the found that Chapelizod House was haunted.
The viceregal couple later returned to live in Dublin Castle, after the Viceregal Apartments had been rebuilt. A later building, now known as Áras an Uachtaráin, now the official residence of the President of Ireland, later became more associated with the name Viceregal Lodge, a name that later building used from 1781 to 1938.
The precise whereabouts of Chapelizod House, which has long since been demolished, are not recorded in detail.