Castletown Geoghegan
| Castletown Geoghegan Baile Chaisleáin Mag Eochagán | |
|---|---|
| Village | |
| Castletown in winter | |
| Coordinates: 53°26′49″N 7°29′20″W / 53.447°N 7.489°W | |
| Country | Ireland | 
| Province | Leinster | 
| County | County Westmeath | 
| Elevation | 95 m (312 ft) | 
| Population  (2016) | 141 | 
| Time zone | UTC+0 (WET) | 
| • Summer (DST) | UTC-1 (IST (WEST)) | 
| Irish Grid Reference | N337442 | 
Castletown Geoghegan (Irish: Baile Chaisleáin Mag Eochagán) is a village in County Westmeath, Ireland, and lies south west of Lough Ennell near the county town of Mullingar. It is around 13 km south-west of Mullingar and 19 km north of Tullamore. Castletown was the seat of the Geoghegan family of the medieval Barony of Moycashel in County Westmeath.