According to the Placenames Database of Ireland, two Irish language derivations of the village name are proposed: Baile Dhá Thuile ("town of two floods") or Baile Uí Sháithil ("town of Ó Sáithil").[2] The former (Baile Dhá Thuile) has official recognition and appears on road signage around Ballyhahill.
History
Evidence of ancient settlement in the area includes a number of ringfort sites in the townland of Ballyhahill and the neighbouring townlands of Mohernagh and Finnoo.[5] A Carnegie library was built in Ballyhahill c. 1907.[6] The local national (primary) school, Scoil Naomh Mhuire, was built in 1959.[7] As of 2017, the school had 39 pupils enrolled.[8]
^ ab"Baile Dhá Thuile / Ballyhahill". logainm.ie. Placenames Database of Ireland. Retrieved 27 May 2021. town of two floods / Baile Dhá Thuile is the official Irish form since 1969, but according to the historical evidence it should be Baile Uí Sháithil, 'the town of Ó Sáithil'