Abdallah ibn Qais

Abdallah ibn Qais (عبد الله بن قيس) (Κάϊσος, Kaisos and Ἀβδελᾶς, Abdelas in Greek sources) was an Umayyad military leader active against the Byzantine Empire in the 670s. In ca. 672/673 he led a raid into Cilicia and Lycia, and wintered there before returning to Syria. In 674/675, by which time, according to al-Tabari, he was admiral-in-chief of the Umayyad navy, he led a raid against the island of Crete along with general Fadala ibn Ubayd.