Celtic City Name Generator

Celtic city names are almost always a landscape description fossilized into a word. The Celtic languages built settlement names from a small set of elements: Gaelic dún (fort), cill (church), baile (homestead), inbhir (river mouth), ard (height), ráth and lios (ringfort), carraig (rock); Welsh and Cornish caer (fort), llan (church enclosure), aber (estuary), pen (headland), tre (farmstead), pont (bridge); Breton ker (settlement) and plou (parish). Dunkeld is the fort of the Caledonians, Aberystwyth the mouth of the Ystwyth, Kilkenny the church of Cainnech. Stack an element with a saint, a chieftain, a river, or a color and you have a name that sounds like it has stood for a thousand years.

The oldest layer comes from Gaul and Roman Britain, where Latin writers recorded Celtic names ending in -dunum (fort), -magus (field or market), -briga (hill), and -durum (gate): Lugdunum, Noviomagus, Camulodunum, Durovernum. These suit an ancient or classical-era setting, while Gaelic and Welsh forms feel medieval and monastic. Legend adds a third layer of mythic capitals such as Emain Macha, Tara, Caer Sidi, and the drowned city of Ys.

This generator mixes real towns, reconstructed ancient cities, legendary seats, and invented names built the authentic way, so you can pick a dialect and keep your whole map consistent.