Castles and forts in County Offaly
The Discover Alone map has 258 castles and forts in County Offaly, Ireland. Below are the 60 with the most written about them, pictures first. Every one has its own page with directions and places nearby.
Open County Offaly on the map
Tulla Castle (site of)Archaeological placeTulla Castle (site of) still lies hidden beneath County Offaly soil, waiting for a shovel or a story to pull it back…
Srah CastleRuinsJohn Briscoe built Srah Castle in 1588 as a four-storey tower house with walls thick enough to absorb cannon fire and…
Site of OCarrolls CastleCastle — unclassifiedO' Carrolls Castle in Kilmaine, County Offaly, has vanished except for grass-covered rubble mounds and a wide fosse…
Site of MonasteryCastle — unclassifiedMonasteroris holds two castle foundations on high Offaly ground, one newly built and one ruined when surveyed in 1550…
Site of Leicesters CastleCastle — tower houseClonearl Demesne holds the buried memory of Leicesters Castle, a tower house built around 1550 for the Leicester…
Site of Lady Mary Warrens CastleCastle — unclassifiedNo stones or ditches remain beside the Togher of Croghan, only the flat field where Mary Warren may have held power.…
Site of Feddaun CastleCastle — unclassifiedFeddaun Castle vanished so completely that a modern bungalow now occupies its exact footprint, hiding the castle walls…
Site of Faddanmore CastleCastle — unclassifiedFaddan More hides a Mac Coghlan castle built around 1500, now absent from the ground despite appearing in the Annals of…
Site of CastleCastle — unclassifiedNo stone or trench remains visible at Clonlisk, yet the ground still belongs to memory: a blind old O'Carroll fought…
Site of Bellmount CastleCastle — unclassifiedBellmount Castle vanished before human memory, leaving only a cartographic ghost on Down Survey maps from 1655-6. The…
Shancourt or MeeneglishCastle — unclassifiedShancourt is a broken rectangular castle on a gravel ridge in County Offaly, preserving only limestone foundations, a…
Rathrobiin Castle in RuinsCastle — unclassifiedRathrobin Castle reduced to a rectangular hood moulding on an outhouse gable, its tower house walls absorbed into…
Rathlihen Castle (ruins)CastleRathlihen Castle stands in ruins across County Offaly, its stones reduced to a broken shadow rather than a proud wall.…
Raheen Castle (site of)Archaeological placeRaheen Castle (site of) still lies hidden beneath County Offaly soil, waiting for someone to scrape back the grass and…
Raheen Castle in ruinsCastle — unclassifiedRaheen Castle stood on high ground above Raheen Lough, a small square fortress mapped in 1838 before human hands or…
Police Barrack on Site of Old CastleCastle — tower houseNot visible at ground level. Illustrated by Grose in Antiquities of Ireland (Stalley 1991, 131). Square shaped…
Pigeon House (in Ruins)Castle — motteMonasteroris still holds a low stone mound where a pigeon house once flew above the Offaly fields. The ruined chamber…
Partially hachuredBawnKilclonfert is a levelled bawn beside Kill Castle in County Offaly, Ireland, where grass-covered banks and ditches…
Partially hachuredBawnFaheeran Castle stands on a ridge in County Offaly, its rectangular wall footings trapped inside a broad D-shaped bawn…
Partially hachuredCastle — motteDanganreagh is a circular earthen mound on an Offaly hillside, marked as a castle in records but stripped of the…
Partially hachuredBawnBallykilmurry Castle stands beside a forgotten L-shaped ditch that vanished before modern cameras arrived. The 1838 map…
Pallas Castle (in Ruins)BawnPallas Castle stands as a ruined tower house inside a massive circular earthwork on a ridgeline above a lake in County…
OutlinedBawnToberdaly Castle is a ruined tower in the southwest corner of a raised walled garden, built by the O’Connor’s in the…
OutlinedCastle — unclassifiedRashinagh House stands in ruins across County Offaly, built upon the forgotten stones of a MacCoghlan castle. Its…
OutlinedCastle — unclassifiedKilladrown Castle is gone except for a two-metre ribbon of west wall, barely waist-high, while the farmhouse seventy…
OutlinedCastle — motteOne story places a carved horseman inside a hilltop rath, another beside a Norman motte, and both accounts still circle…
OutlinedCastle — ringworkOutlined, Cappydonnell Big is a subrectangular medieval enclosure in County Offaly, Ireland, built around a possible…
OConor Falys or Croghan Castle (in ruins)House — fortified houseOConor Falys, also called Croghan Castle, was a large rectangular fortified house built in the late medieval period at…
OCarrolls Castle (in Ruins)BawnOCarrolls Castle is a ruined bawn in Ballyknockan, built during the seventeenth century to defend a low-lying hollow in…
Moyally Castle (in Ruins)BawnMoyally Castle is a ruined rectangular bawn from the late 16th or 17th century, built on a low natural rise in County…
Mountpleasant Ho. in ruinsHouse — fortified houseUnlocated house indicated on the Down Survey (1654-7) map (NLI, MS 716). The SMR office has marked the ruins of…
MoteCastle — motte and baileyMote, Drumcooly is a circular earthen castle on Drumcooly Hill in County Offaly, with a flat-topped mound, a partly…
Monastery in ruinsCastle — unclassifiedThe castle walls at Monasteroris still stand in County Offaly, marking a place where Anglo-Norman power, Franciscan…
Moat of DownCastle — motte and baileyDown castle stands on a sharp esker ridge in County Offaly, its steep mound rising beside a small stream and ancient…
Moat HillCastle — motteMoat Hill rises five metres above the Offaly fields, a natural ridge later shaped into a castle mound with a possible…
MoatCastle — motte and baileyBallyboy motte stands 3.5 metres high on a slight rise north of a river, its summit marked by a circular limestone wall…
Lisclooney CastleHouse — fortified houseLisclooney Castle is a ruined L-shaped fortified house in County Offaly, built in the late 1600s on the old Mac Coghlan…
Lemanaghan CastleCastle — tower houseLemanaghan Castle was a late 15th or early 16th century Mac Coghlan tower house standing on an island of well drained…
Leitra CastleCastle — unclassifiedLeitra Castle stands on a bog island in County Offaly, a small two-storey limestone square built around the seventeenth…
Kilnagarnagh Old Ho.Castle — unclassifiedKilnagarnagh Old Ho is a vanished castle in County Offaly, buried beneath Kilnagarnagh House with no surface trace…
Killyon Abbey (in ruins)BawnKillyon Abbey marks a fifth-century nunnery founded by St. Ciaran of Saiger, later overlaid by a fortified house built…
Killooley CastleCastleKillooley Castle stands in County Offaly, a name that suggests stone walls and human ambition even when no structure…
Kill Castle (ruins)Castle — tower houseKill Castle in Kilclonfert is a ruined tower house from the sixteenth century, reduced to grass-covered wall footings…
Kilcummin Ho.Castle — unclassifiedKilcummin Ho. is a vanished Mac Coghlan castle in County Offaly, mentioned by De Renzi in the 17th century but now…
Kilcoursey Castle (in Ruins)BawnKilcoursey Castle stands ruined on a steep hill in County Offaly, its limestone tower and bawn wall built to watch…
Kilcolgan Castle (in Ruins), Tower (in Ruins)BawnKilcolgan Castle is a ruined bawn in County Offaly where two strange corner towers still stand inside a square wall.…
IndicatedBawnIndicated, Oakleypark is a surviving bawn in County Offaly, Ireland, set on slightly elevated ground beside western…
IndicatedCastle — unclassifiedLynally Glebe hides a possible stone castle atop a motte in County Offaly, marked only by faint wall footings. The site…
IndicatedCastle — motteIndicated, Fancroft is a castle motte in County Offaly, Ireland. It still stands as a flat-topped mound five metres…
IndicatedHouse — fortified houseCurralanty is a ruined fortified house in County Offaly, probably built during the 1619 plantation. Two circular towers…
IndicatedCastle — unclassifiedClonagannagh Castle belonged to Mulrony Duff O'Carroll in 1621 when Crown commissioners granted him the town, lands and…
HouseHouse — fortified houseCree Castle stood as a fortified tower house with an angle tower near the border of Cree and Coolnagrower during the…
Gorteen CastleCastle — unclassifiedKilcoursey’s Gorteen castle vanished completely, leaving only a low stony rise where stone and memory rubbed together.…
Glenacurragh CastleCastle — tower houseGlenacurragh Castle was an O’Carroll tower house built in the 16th century on a low rise overlooking the Offaly…
Geashill Castle (ruins)CastleGeashill Castle stands in ruins across County Offaly, its stones reduced to a broken silhouette against the sky. The…
Garry Castle in ruinsCastle — tower houseGarrycastle is a ruined four-storey tower house built for the Mac Coghlan's around 1450, now reduced to a north wall…
Garbally Castle in RuinsCastle — unclassifiedGarbally Castle vanished before modern cameras arrived, leaving only a memory of mortared walls on a low ridge beside…
Fortel CastleCastle — tower houseFortel Castle stood as a fortified tower house for the Monaghan family in County Offaly, enduring from the late…
Fort Castle (in Ruins)BawnDaingean rose around Fort Governor, built by Sir William Brabazon in 1546, where a square bawn still holds the ghost of…
Faheeran Castle (ruins)CastleFaheeran Castle stands in ruin within County Offaly, its stones reduced to a scattered skeleton rather than a proud…