DYFRYN, a hamlet, in the parish of LLANTHETTY, hundred of PENCELLY, county of BRECKNOCK, SOUTH WALES, 7 miles (S. E.) from Brecknock, containing 248 inhabitants. The parochial church is situated in this hamlet, which is bounded on the south by the Crawnon brook, and on the north-east by, the river Usk. It is also traversed by the Brecknock canal, to which a tram- road leads, conveying lime from the Llangattock hills, and coal from the banks of the river Romney, in the same parish: this hamlet is extremely well wooded.