BLAENAU, a hamlet, joint with Llan, in the parish of LLANGENDEIRN, hundred of KIDWELLY, county of CARMARTHEN, SOUTH WALES, 3 miles (S. E. by S.) from Carmarthen. The population is included in the return for the parish, of which it forms the north-western portion; the road from Llangendeim to Carmarthen passes through it.