Fithceallach mac Flainn
Irish King
Fithceallach mac Flainn (died 691) was the 16th King of the Uí Maine.
Little seems to be known of his reign. In 673 the death of Ceannfaeladh mac Blathmac, son of Diarmaid, was killed in the battle of Aircealtair, at Tigh Ua Maine, but this place was probably not within his kingdom.
The annals merely report his death. Not details are given.