Gurteen de la Poer, or Gurteen le Poer, is an Elizabethan Revival house in County Waterford, Ireland, situated on the south bank of the River Suir, close to Kilsheelan and about 8 km east of Clonmel.
The estate belonged to the de la Poers, an Anglo-Norman family whose affiliation with the Catholic Church led to their eventual expulsion from the Protestant English establishment. Edmund, 1st Count de la Poer, 18th Lord le Poer and Curraghmore, a Knight of Malta and Private Chamberlain to Pope Pius X, commenced the building of the present castle in 1863 to replace an earlier house which itself replaced a yet earlier house.
The large baronial house was designed by Samuel Ussher Roberts (1821–1900), great-grandson of the 18th century Waterford architect John Roberts. The design of Castle Gurteen was probably influenced by Scottish architect William Burn, an architect responsible for several Tudor-Baronial mansions in Britain. Construction began 1863 and was completed in 1866. After the completion of Castle Gurteen, Samuel Ussher Roberts also designed Kylemore Castle (now Kylemore Abbey) in County Galway. A number of features used at Gurteen were also used at Kylemore, and the same builder, Thomas Carroll, worked on both castles.
