Altinaghree Castle or Liscloon House, known locally as Ogilby's Castle, is a large, derelict castle situated outside Donemana, County Tyrone. It is believed to have been built around 1860 by William Ogilby. 
Near Donemana, County Tyrone, Northern Ireland
Altinaghree Castle is a derelict castle situated on private farmland outside Donemana, south of Londonderry in County Tyrone.
The castle is also known as Altnacree Castle, Liscloon House, and is known locally as Ogilby's Castle. It was once a large elegant building with magnificent banquet room, but is now in ruins. The building is constructed from cut stone.
The castle is on private land and is not open to the public, but can be seen and photographed from the main Dunamanagh - Claudy Road (B49).
The castle is believed to have been built by William Ogilby around 1860. James Douglas Ogilby, who later became a famous ichthyologist in Australia, was the son of William Ogilby. James fell in love with a factory seamstress, Mary Jane Jamieson, and was denied permission to marry her. He ended up eloping and marrying her in 1884. He moved to Australia where he was appointed to the Australian Museum in 1885. The castle was abandoned by the end of the century and fell into disrepair. 
- "Northern Ireland Castles - County Tyrone". britainirelandcastles.com. Retrieved 11 March 2014.
- "Castles, Romance and heartbreak". londonderrysentinel.co.uk. Retrieved 11 March 2014.
- "Ogilby's Castle". castles.nl. Retrieved 11 March 2014.
- "Source of Altinaghree Castle in Northern Ireland (United ..." mobile-history.eu. Retrieved 11 March 2014.