St. Helen's is a period house built in the early 1750s and located in Booterstown, County Dublin, Ireland. It is operated as a five star Radisson hotel and owned by the Cosgrave Property Group. It had some notable owners such as the Hugh Gough, 1st Viscount Gough, Sir John Nutting and the Congregation of Christian Brothers. The building displays the motto "Mors Potior Macula", meaning "Death rather than infamy".