This is a list of surnames in which the origin is Old Celtic. The Celtic languages are a group of related languages now spoken primarily on the British Islands and Brittany.
WhelanIrish Anglicized form of Irish Ó Faoláin meaning "descendant of Faolán".
YorkEnglish From the name of the English city of York, which was originally called Eburacon (Latinized as Eboracum), meaning "yew" in Brythonic. In the Anglo-Saxon period it was corrupted to Eoforwic, based on Old English eofor "boar" and wic "village". This was rendered as Jórvík by the Vikings and eventually reduced to York.