In Irish, "baile" denotes a townland or settlement cluster, while "Uí Chuirc" points to the descendants of a figure named Corc, suggesting the land was once identified with a particular family or sept. The "Thiar" suffix means western, distinguishing this townland from a neighbouring eastern counterpart, Baile Uí Chuirc Thoir. That east-west pairing is a common feature of Irish townland naming, a practical way of dividing territory that was once held or worked as a single unit.