| Redcastle | |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ulster |
| Subdivision Type3: | County |
| Subdivision Name3: | County Donegal |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 55.1249°N -7.1971°W |
| Elevation M: | 30 |
| Blank Name: | Irish Grid Reference |
Redcastle [1] is a village in County Donegal, Ireland, located on the eastern shores of Inishowen and overlooking the wide expanse of Lough Foyle. To the south is the city of Derry and to the north lie the villages of Moville and Greencastle.