1. Echtach. Daughter of Diarmait Ua Duibne in lays from Duanaire Finn and in other oral traditions. After Fionn mac Cumhaill's role in refusing to help Diarmait after he has been gored by the boar, Eachtach rallies her brothers for revenge against the Fenian hero and wounds him severely.
2. Cognomen of Illann
3. One of the wives of Lug Lámfhota.
