Fionn as a Baby Name. Meaning and Origin of Fionn

What is the meaning of the name Fionn ?

The baby name Fionn is a Male name , 1 syllables long and is pronounced /fʲuːn/ (approx. "fyoon" or "fyuhn").

Fionn is Irish in Origin.

Fionn (pronounced FYUN) is the Irish and Scottish Gaelic form drawn from Old Irish find/finn, meaning “fair, white, bright” with connotations of purity and blessedness. It is inseparable from the heroic figure Fionn mac Cumhaill (Finn MacCool), leader of the Fianna in the Fenian/Ossianic cycles, a culture-bearing hero famed for wisdom gained from the Salmon of Knowledge. The name appears in medieval annals and persisted in Gaelic-speaking communities, later enjoying renewed use during the 19th–20th‑century Celtic revival.

Common variants and relatives include Finn (Anglicized and now international), the early spelling Find, and Scottish forms used in surnames and place-names. Names built from the same root include Fionnán/Finnian, Fionnbharr/Finbar, Fionnlagh/Finlay, and Fionntán/Fintan; feminine counterparts are Fiona (a modern Scottish creation) and Ffion in Welsh, with Fionnuala/Fionnghuala “fair-shouldered” sharing the first element. Overall meaning centers on “fair” or “bright,” often interpreted as fair-haired or radiant.