(Ἱκέσιος), a physician, who lived probably at the end of the first century B. C., as he is quoted by Crito (ap. Gal. De Compos. Medicam. sec. Gen. 5.3, vol. xiii. p. 786, 7), and was shortly anterior to Strabo. He was a follower of Erasistratus, and was at the head of a celebrated medical school established at Smnyrna. (Strab. 12.8, sub fin.) He is several times quoted by Athenaeus, who says (ii. p. 59) that he was a friend of the physician Menodorus; and also by Pliny, who calls him "a physician of no small authority." (H.N. 27.14.) There are extant two coins, struck in his honour by the people of Smyrna, which are described and illustrated by Mead in his Lond. 4to. 1724; see also Fabric. Bibl. Gr. vol. xiii. p. 189, ed. vet.