(Μαρτιανός), a physician at Rome, who enjoyed a great reputation as an anatomist in the second century after Christ, and wrote some works on that subject, which are now lost. Galen became personally acquainted with him during his first visit to Rome, about A. D. 165, and tells an anecdote of him which shows him to have been an envious and malicious person (De Praenot. ad Epig). 100.3, vol. xiv. p. 614, &c.). He is probably the same person as the physician named Martialis, though it is uncertain which name is correct.

Some medical formulae by a physician of the same name are quoted by Aetius (2.3. 110, 2.4. 47, 3.3. 11, pp. 358, 402, 554) and Scribonius Largus ( 46.177. p. 223); but this cannot be the same person as the contemporary of Galen, as lie lived about the beginning of the Christian era in the reign of Augustus.