| Rathowen | |
| Native Name: | Irish: Ráth Eoghain |
| Native Name Lang: | ga |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Leinster |
| Subdivision Type3: | County |
| Subdivision Name3: | County Westmeath |
| Leader Title1: | Dáil Éireann |
| Leader Name1: | Longford–Westmeath |
| Leader Title2: | EU Parliament |
| Leader Name2: | Midlands–North-West |
| Unit Pref: | Metric |
| Population As Of: | 2022 |
| Population: | 187 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 53.66°N -7.52°W |
| Blank Name: | Irish Grid Reference |
| Blank Info: | N317678 |
Rathowen [1] is a small village in County Westmeath, Ireland, on the N4 national primary route. Rathowen was designated as a census town by the Central Statistics Office for the first time in the 2016 census,[2] at which time it had a population of 150 people.[3] The population increased to 187 at the 2022 census.[4]
The village is around 20 km northwest of Mullingar, 20 km southeast of Longford Town, and 100 km northwest of Dublin city centre.
Street and Rathowen railway station was opened on 1 August 1877 and finally closed on 17 June 1963.[5]