+Celtic languages form a branch of the broader [Indo-European](/wiki/indo-european) language family. Once widespread across Europe, they now predominantly thrive in the [British Isles](/wiki/british_isles) and Brittany, including living tongues such as Irish, Welsh, and Breton.
+## See also
+- [Irish Language](/wiki/irish_language)
+- [Welsh Language](/wiki/welsh_language)
+- [Breton Language](/wiki/breton_language)
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