BODAIOCH (BOD-AIOCH), a township, in the parish of TRiVEGLWYS, upper division of the hundred of LLANIDLOES, county of MONTGOMERY, NORTH WALES, 5 miles (N. N. E.) from Llanidloes. The population is returned with the parish. It is situated on the left bank of the river Tarannon, which flows into the Severn a few miles distant.