Fion is a unisex given name of Irish origin, derived from the ancient Irish word 'fionn', meaning 'fair' or 'white'. It is often associated with the legendary Irish hero Fionn mac Cumhaill (also known as Finn MacCool), leader of the mythical hunter-warrior band known as the Fianna. The name gained popularity in Ireland during the late 19th and early 20th centuries, and has since been adopted internationally.
"Fion saw its peak popularity with nine births each in both 1998 and 2001."