Castletown may refer to: Castle town, a settlement built adjacent to or surrounding a castle
Places
Australia
Castletown, Western Australia, a suburb of the remote town of Esperance
Republic of Ireland
Castletownroche, County Cork
Castletown, County Cork (disambiguation), several townlands and villages
Castletown, County Laois
Castletown, County Limerick, a civil parish in County Limerick
Castletown House, County Kildare
Castletownbere, County Cork
Castletown-Geoghegan, County Westmeath
Castletown, County Wexford
Castletown Kilpatrick, County Meath; see C. Y. O'Connor
Isle of Man
Castletown, Isle of Man
United Kingdom
Castletown, Cheshire
Castletown, Dorset
Castletown, Highland, Scotland
Castletown, Penrith, Cumbria
Castletown, County Antrim, a townland in Islandmagee, County Antrim, Northern Ireland Castletown, County Tyrone, a townland in Carnteel parish, County Tyrone, Northern Ireland Castletown, Sunderland RAF Castletown, Scotland
Other uses
Castletown (horse), a New Zealand Thoroughbred racehorse
Castletown, County Mayo, the fictional setting of the mockumentary Hardy Bucks
See also
Castleton (disambiguation)