(Λεοντίσκος), a son of Ptolemy Soter, by the celebrated Athenian courtezan, Thais. He was taken prisoner by Demetrius Poliorcetes in the great sea fight off Cyprus (B. C. 306), together with his uncle, Menelaus, but was immediately restored to his father without ransom. (Athen. 13.576; Just. 15.2.)