(Πάμφιλος), a physician and grammarian at Rome, where he acquired a large fortune, probably in the second or first century B. C. (Galen, De Compos. Medicam. sec. Loc. 6.3, vol. xii. p. 839; Aetius, 2.4.16. p. 375.) He wrote a work on plants (St. Epiphan. Adv. Hacres. i. init.), in which they were arranged in alphabetical order, and which Galen criticizes very severely, saying that Pamphilus described plants which he had evidently never seen, and that he mixed up a quantity of absurd and superstitious matter. (De Simplic. Medicam. Temper. ac Facult. vi. praef., 7.10.31, vol. xi. pp. 792, 793, 796, 797, 798, 12.31.) Several of his medical formulae are quoted by Galen. (De Compos. Medicam. sec. Loc. 6.3, vol. xii. p. 842, 7.3, vol. xiii. p. 68.) He is probably the same person as the grammarian of Alexandria mentioned by Suidas. (See Lambec. Biblioth. Vindobon. vol. ii. p. 141, sq. ed. Kollar.)