Tynagh is a village and electoral division in south-east County Galway in Ireland. The village is in a townland and civil parish of the same name. Recorded as Tyneaach, Teacneaghe, Theaneac, its current name is a contraction of Teach nEachach, 'Eochu's house'. In medieval Irish sources it is referred to as Teach nEachach, or 'the house of Eochu'. It was or…Tynagh is a village and electoral division in south-east County Galway in Ireland. The village is in a townland and civil parish of the same name. Recorded as Tyneaach, Teacneaghe, Theaneac, its current name is a contraction of Teach nEachach, 'Eochu's house'. In medieval Irish sources it is referred to as Teach nEachach, or 'the house of Eochu'. It was originally associated with the townland of Lecarrow, one mile east of the village, now named a Billew Burial Ground, the word Billew derived from Bileadha, plural of bile, denoting a sacred tree.