Castle Gurteen de la Poer, Country house in County Waterford, Ireland.

Castle Gurteen de la Poer is an Elizabethan Revival house on the south bank of the River Suir near Kilsheelan, County Waterford. Its entrance façade has a large square tower with an attached polygonal turret facing a forecourt of castled walls. Inside, a top-lit great hall with a gallery is divided by a screen of Gothic arches, behind which rises a staircase with a wrought-iron balustrade.

Edmund, 1st Count de la Poer and 18th Lord le Poer and Curraghmore, began building the present house in 1863 to replace an earlier house on the site. Designed by Samuel Ussher Roberts, great-grandson of Waterford architect John Roberts, it was completed in 1866 by builder Thomas Carroll, who later worked on Kylemore Castle. The de la Poers, an Anglo-Norman family, lost their place in the Protestant establishment through their Catholic allegiance.

The de la Poer family claimed descent from Sir Robert De Poer, who came to Ireland with Strongbow in 1172; Henry II granted him Waterford and made him marshal of Ireland. Edmund, 1st Count de la Poer, was a Knight of Malta and Private Chamberlain to Pope Pius X. Since 1998 the artist Gottfried Helnwein has lived and worked here, and Marilyn Manson and Dita Von Teese married at the castle in December 2005.

The house is a private residence, not a site with public opening hours; visits depend on the owner's agreement. It stands on the south bank of the River Suir near Kilsheelan, about 8 km east of Clonmel, so approach by that road. Arrange any visit in advance rather than turning up at the gates.

The Austrian artist Gottfried Helnwein bought the castle in 1998 and restored house and gardens; he lives and works there with his family. Guests have included Sean Penn, Ben Kingsley and Antje Vollmer, and Marilyn Manson married Dita Von Teese here in December 2005.