Finn

Finn derives primarily from the Old Irish name Fionn, meaning bright or fair, and was famously borne by Fionn mac Cumhaill, the legendary Irish hero and leader of the warrior band known as the Fianna, whose exploits are celebrated in a vast cycle of medieval Gaelic literature. The name also functions independently in Scandinavian languages as a reference to a person from Finland or the Finns, rooted in the Old Norse ethnic term. Both streams have contributed to its widespread use across Ireland, Britain, the Netherlands, Germany, and the Nordic countries. Related forms include Fionn, Fingal, and the feminine Finna.