Fergus, son of Finn, [208].
Fergus, son of Roy, an Ulster hero, [14], [166], [167], [170], [171], [175], [192]-196, [198], [200].
Fergusson, Dr. James, [76], [114], [137], [138].
Festivals, Celtic solar or agricultural, [405]-412.
Ffordd Elen, [324].
Fiacha, son of Conchobar, [197], [198].
Fiachadh, king of Ireland, [206].
Fiachra, son of Lêr, [143].
Fianchuivé, submarine island of, [97], [104].
Fianna Eirinn, see Fenians.