In Irish mythology Fiacha Cennfinnán (modern spelling: Fiacha Ceannfhionnán meaning "Fiacha [of the] little white head"), son of Starn, son of Rudraige, of the Fir Bolg, became High King of Ireland when he overthrew his great-uncle Sengann.
He ruled for five years, until he was overthrown by Rinnal, son of Genann.
The Milesian king Fíachu Findoilches is sometimes known by the same name.
Primary sources
- Lebor Gabála Érenn
- Annals of the Four Masters
- Seathrún Céitinn's Foras Feasa ar Érinn
