Celtic Kingdom Name Generator

Real Celtic kingdoms were rarely named after a king or a capital. Irish over-kingdoms took the name of a people or a dynasty, so Dál Riata means the share of Riata's folk, Ulaid is simply the Ulstermen, and Uí Néill is the descendants of Niall. Welsh and Brittonic kingdoms like Gwynedd, Powys, Rheged and Gododdin were often named for a region or tribe, and the Picts divided Fortriu, Fib, Cait and Ce into a handful of provinces. Brittany used Bro, a country or district, as in Bro Waroch.

In Irish, Ríocht is a kingdom, Tír a land, Dún a fort and Ráth or Lios a ringfort seat, so Ríocht na nGleann is the Kingdom of the Glens and Tír na mBeann the Land of the Peaks. In Welsh, Teyrnas is a kingdom, Gwlad a country, Caer a fortress and Ynys an island, giving Teyrnas Eryri or Gwlad y Niwl, the Land of the Mist. Scottish Gaelic uses Rìoghachd, and Breton Rouantelezh.

For an English-language setting, translate rather than transliterate: Kingdom of the Nine Glens, Kingdom of the Red Branch or Kingdom of the Standing Stones reads as Celtic without a pronunciation guide. The list mixes attested kingdoms, cantrefs and tribal realms with original names that follow the same grammar.