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| River Kenfig | |
|---|---|
 These extensive reed beds lie close to the mouth of the river | |
| Native name | Afon Cynffig (Welsh) |
| Location | |
| Country | United Kingdom, Wales |
| Region | South Wales |
| County | Neath Port Talbot, Bridgend |
| Cities | Pyle, Marlas, North Cornelly |
| Physical characteristics | |
| Source | |
| • location | Mynydd Margam, Neath Port Talbot, Wales |
| Mouth | Swansea Bay |
• coordinates | 51°32′15″N 3°45′41″W / 51.53750°N 3.76139°W |
| Length | 18.0 km (11.2 mi) |
| Discharge | |
| • location | Kenfig Sands, Bridgend |
The River Kenfig (Welsh: Afon Cynffig) is a river in Wales, straddling the county boroughs of Neath Port Talbot and Bridgend. It is approximately 18 kilometres long.