Abbeyglen Castle Annaghdown Castle Ardfry Castle Athenry Castle Ballindooly Castle Ballybroder Castle Ballylin Castle Ballymulfaig Castle Ballynahinch Castle Barnaderg Castle Cahererillan Castle Caherakilleen Castle Cashlaundarragh Castle (Ryehill Castle) Castletown Castle (Kiltartan Castle) Clogharevaun Castle Cloghan Castle Cloghroak Castle Cloondagauv Castle Creganna Castle Daly Castle Derryhivenny Castle Dunguaire Castle (Dungory Castle) Fartamore Castle Ffrench Castle Glinsk Castle Isert Kelly Castle Killimor Castle Killeen Castle Tullokyne Castle Wallscourt Castle Leitrim Castle Lydacan Castle Menlo Castle (Blake’s Castle) Moycola Castle Moyveela Castle Pallas Castle Portumna Castle Rathgorgin Castle Renvyle Castle Taylor Castle Aille Castle Ballymore Castle Annaghkeen Castle Ardrahan Castle Aughnanure Castle Ballydonnellan Castle Ballinduff Castle Ballymaquiff Castle Ballynabanaba Castle Ballynahivnia Castle Brackloon Castle Caherglassaun Castle Cahernamuck Castle Castlecreevy Castle Claregalway Castle Cloghaun Castle Clonbrock Castle Clooneen Castle Creggmulgrany Castle Deerpark Castle Derrymaclaughna Castle Dunmore Castle Feartagar Castle Furmina Castle (O’Brien’s Castle) Grange East Castle Guinness Tower Hen's Castle (Castlekirk) Kiltroge Castle Lackagh Castle Lismore Castle Lynch’s Castle Merlin Castle (Doughiske Castle) Moylough Castle Newtown Castle Park Castle (Cooltymurraghy Castle) Rahaly Castle Ricks Island Castle Ross Castle Strongfort Castle (Caheradangan Castle) Seefin Castle Ashford Castle Anbally Castle Ardamullivan Castle Arkin Castle Ballinderry Castle Ballybrit Castle Ballylee Castle (Thoor Ballylee) Ballynacourty Castle Banagher Castle Cloonacauneen Castle Caherkinmonwee Castle Cargin Castle Castlegar Castle Clifden Castle Cloghballymore Castle Cloonboo Castle Corofin Castle Cummer Castle Derrydonnell Castle Drumharsna Castle Dunsandle Castle Fiddaun Castle Garbally Castle Hackett Castle Kilclooney Castle Killure Castle Lackafinna Castle Lavallyconnor Castle Longford Castle Mannin Castle Monivea Castle Moyode Castle Oranmore Castle Cromwell’s Barracks (Port Island Castle) Raruddy Castle Rinville Castle Tawnaghmore (Turloughcartron) Castle Terryland Castle