Phanodemus (gr. Φανόδημος), the author of one of those works on the legends and antiquities of Attica, known under the name of Atthides. The age and birthplace of Phanodemus are uncertain. It has been conjectured, from a passage in Proclus (ad Platon. Tim. p. 30, ed. Basil.), that Theopompus wrote against him, but the passage in Proclus does not prove this. Phanodemus must in any case have lived before the time of Augustus, as he is cited both by the grammarian Didymus (Harpocrat. s. v. gamelia) and Dionysius of Halicarnassus (i. 61). The birthplace of Phanodemus would, according to a passage of Hesychius (s. v. Φαλεοί), be Tarentum, since the latter speaks both of Phanodemus and Rhinthon as Ταρεντῖνοι; but it has been well conjectured, that we ought in this passage to read Tarentinos, thus making Rhinthon alone the Tarentine. It is much more probable that he was a native of the little island of Icus, one of the Cyclades, since we know that he wrote a special work on that island. In any case he identified himself with Attica, and speaks with enthusiasm of its greatness and glory.

Three works of Phanodemus are cited, but of these the first was by far the most important. 1.Atthis, which has been already spoken of. It must have been a work of considerable extent, as the ninth book is referred to (Harpocrat. s. v. Λεωκόρειον). We annex a few of the passages of the ancient writers, in which it is quoted : a complete list is contained in the works of which we give the titles below (Athen. iii. p. 114, c. ix. p. 392, d. x. p. 437, c. xi. p. 465, a.; Plut. Them. 13, Cim. 12, 19). 2. Deliaka (Harpocrat. s. v. Ἑκάτης νῆσος). There seems no good reason for changing the name of Phanodemus into that of Phanodicus in this passage of Harpocration, as Vossius has done, nor to adopt the alteration of Siebelis, by which the work is assigned to Semus. 3. Ikiaka, an account of the island of Icus (Steph. Byz. s. v. Ἰκός.. The fragments of Phanodemus have been collected by Siebelis, Phano demni, Demonis, §c., Fragmenta, Lips. 1812 (p. v. and pp. 3-14), and by C. and Th. Müller, Fragmeta Historicorum Graecorum, Paris, 1841 (pp. lxxxiii. lxxxvii. and pp. 366-370).