| Trelech | |
|---|---|
| Village and community | |
 Trelech village | |
  Trelech Location within Carmarthenshire | |
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Police | Dyfed-Powys |
| Fire | Mid and West Wales |
| Ambulance | Welsh |
Trelech (Welsh: Tre-lech) is a village and community in Carmarthenshire, in south-west Wales. Trelech is located some 10 miles north-west of Carmarthen and 6.5 miles south of Newcastle Emlyn, and in the parish of Tre-lech a'r Betws.