Jabarkan Basa Céltik dari Éropa dalam bahasa sunda

"Celtic language" was originally used only to describe the Gaelic language in Ireland; however, the term now extends to the other Gaelic and Brythonic languages. Celtic Europe is comprised of those countries and regions where Celtic languages are spoken. The Celtic nations are: Ireland, Scotland (UK), Wales (UK), Cornwall (UK), the Isle of Man (a British Crown dependency) and Brittany (within France). These are all nations where a Celtic language is spoken and share in Celtic organisations (see Pan Celticism).

Sometimes considered Celtic nations are Galicia and Asturias (both autonomous communities of Spain), as well as northwest Portugal. Ireland and Some regions of England (in addition to Cornwall) have retained a degree of Celtic influence in their regional dialects (see Cumbric and Hiberno-English), although England's Celtic languages died out as recently as the 18th century in Devon and Cornwall.