Cahercaltragh, in the townland of Shanbally in County Galway, carries within it the Irish word cahir, or cathair, referring to a stone fort, typically a circular enclosure built from dry-stone walling and associated with the early medieval period in Ireland. These structures are scattered across the west of Ireland in considerable numbers, ranging from modest farmstead enclosures to the great cliff-top fortresses of the Aran Islands, and they speak to a period when the landscape was organised around kinship, cattle, and the need to define and defend territory.

Beyond the evidence contained in the placename itself, reliable detail about this particular site is presently limited. What can be said is that the townland of Shanbally sits within a part of Galway where the archaeological record is dense, and where ringforts and stone enclosures of various periods survive in varying states of preservation, some still visible as upstanding walls, others reduced to low grassy banks detectable mainly from aerial photographs or field survey. The second element of the name, caltragh, is also of interest: it derives from the Irish cealtrach, a word historically associated with a burial ground, often a pre-Christian or early Christian one not attached to a formal church. If the name reflects genuine antiquity, this site may have served a function beyond simple habitation or livestock management.