| Glyn Tarell | |
|---|---|
 Glyn Tarell location within Powys | |
  Glyn Tarell Location within Powys | |
| Population | 633 |
| OS grid reference | SN 979 232 |
| • Cardiff | 31.8 mi (51.2 km) |
| • London | 146.1 mi (235.1 km) |
| Community |
|
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Post town | Aberhonddu |
| Police | Dyfed-Powys |
| Fire | Mid and West Wales |
| Ambulance | Welsh |
Glyn Tarell is a valley and a community in the county of Powys, Wales, and the historic county of Brecknockshire. It is in the Brecon Beacons National Park and at the northern edge of the Brecon Beacons mountains.