Fiona

Feminine form of FIONN. This name was (first?) used by Scottish poet James Macpherson in his poem 'Fingal' (1762).

FIONN   male   Irish, Irish Mythology
From Irish fionn (older Irish finn) meaning "fair" or "white". Fionn mac Cumhail was a legendary Irish hero who became all-wise by eating an enchanted salmon. He fought against the giant Fomors with his son Oisín and grandson Oscar.
EQUIVALENTS
ENGLISH: Fiona
SCOTTISH: Fiona
MASCULINE FORMS
IRISH MYTHOLOGY: Finn, Fionn
IRISH: Finn, Finnagán, Finnán, Fion, Fionn, Fionnán
OTHER FORMS
ENGLISH: Finnegan, Viona
IRISH: Finnegan