Fingal mac Gofraid, and his father, Gofraid mac Sitriuc, were late eleventh-century rulers of the Kingdom of the Isles. Although one source states that Gofraid mac Sitriuc's father was named Sitriuc, there is reason to suspect that this could be an error of some sort. There is also uncertainty as to which family Gofraid mac Sitriuc belonged to. One such family, descended from Amlaíb Cúarán, King of Northumbria and Dublin, appears to have cooperated with Diarmait mac Maíl na mBó, King of Leinster. Another family, that of Echmarcach mac Ragnaill, King of Dublin and the Isles, opposed Amlaíb Cúarán's apparent descendants, and was closely connected with Diarmait's adversaries, the Uí Briain kindred.