Blarney Castle
- Ireland Interactive provides images and brief history of this medieval castle, famed for its Blarney Stone. Visitor information.
- http://homepages.iol.ie/~discover/blarney.htm

Swords Castle, Co Dublin
- Fiona O'Raw provides history and photographs of the Norman and medieval castle of the Archbishop of Dublin. Also the 9th-century Round Tower. From Around Swords.
- http://homepage.eircom.net/~aroundswords/swordshistory.htm

Castles of Galway
- Patrick Larkin's photographs of the ancient medieval castles, tower-houses and fortified mansions of County Galway, Ireland.
- http://homepage.eircom.net/~qvc/

King John's Castle
- An illustrated history from Earthlore Ireland of the medieval fortress in Limerick built to guard the Shannon frontier. Includes discoveries from 1990s excavations.
- http://www.elore.com/elirhs01.html

Tynte's Castle
- An urban medieval tower house in Youghal, County Cork. An illustrated history, details of its restoration and plans and elevations from owner Daniel McCarthy.
- http://tyntescastle.com/

Birr Castle Demesne
- The official site supplies photographs and chronology of the castle, home to Lord and Lady Rosse, which is not open to the public. The early 17th-century castle was built around a medieval gate-house.
- http://www.birrcastle.com/

Grange Castle
- An Irish 15th-century tower house. Photograph, history and information on its proposed restoration.
- http://ils.ie/grange/