Kidwelly
| Kidwelly 
 | |
|---|---|
| Gatehouse at Kidwelly Castle | |
| Location within Carmarthenshire | |
| Population | 3,689 (Community, 2021) | 
| OS grid reference | SN407067 | 
| Community | 
 | 
| Principal area | |
| Preserved county | |
| Country | Wales | 
| Sovereign state | United Kingdom | 
| Post town | KIDWELLY | 
| Postcode district | SA17 | 
| Dialling code | 01554 | 
| Police | Dyfed-Powys | 
| Fire | Mid and West Wales | 
| Ambulance | Welsh | 
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
| Website | kidwelly.gov.uk | 
Kidwelly (Welsh: Cydweli) is a town and community in Carmarthenshire, southwest Wales, approximately 7 miles (11 km) northwest of the most populous town in the county, Llanelli. At the 2021 census the community had a population of 3,689.
It lies on the River Gwendraeth above Carmarthen Bay. The community includes Mynyddgarreg and Llangadog.