| Site of Special Scientific Interest | |
| Location | Carmarthenshire |
|---|---|
| Grid reference | SN7471623050 |
| Coordinates | 51°53′31″N3°49′19″W / 51.891879°N 3.8219958°W |
| Interest | Biological |
| Area | 1.79 ha |
| Notification | 30 March 1984 |
Cae Maes-y-ffynnon is a wet unimproved pasture that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.