Bally" comes from the Irish word "Baile", which means (in this context) "town". So there's quite a lot of them : r/meme
Forgotten Ireland - Bally is an extremely common prefix to town names in Ireland, and is derived from the Gaelic phrase 'Baile na', meaning 'place of'🇮🇪 | Facebook
Irish Placenames and Genealogy | Paul MacCotter Genealogy and Family History Service
Forgotten Ireland - Bally is an extremely common prefix in the town names of Ireland. It is derived from the Gaeilge phrase 'baile na' which means 'place of' 🇮🇪 | Facebook
Why do Irish towns start with Bally? - Quora
Bally Dog Name Meaning & Info - Drlogy
Irish place names briefly explained | LoneSwimmer
Irish Baby Names: Meanings & Origins
Tracing Your Irish Ancestors Part 5: Irish Jurisdictions and Finding Your Ancestral Home – Family Locket
Bally-ing around N.I. - Miss Darcy's Adventures
Ireland Town Names: Solving the Mysteries behind Their Meaning - ConnollyCove