Androsthenes (Ancient Greek: Ἀνδροσθένης; literally meaning: "Man's Strength") of Thasos, son of Callistratus, was one of the admirals of Alexander the Great. He sailed as a trierarch with Nearchus, and was also sent by Alexander down the Euphrates to explore the coast of the Persian Gulf, skirting the coast of Arabia in a triacontor and sailing farther than Archias of Pella.[1][2] He wrote an account of this voyage, titled The Navigation of the Indian sea (Ὁ τῆς Ἰνδικῆς παραπλοῦς).[3][4][5]