5th-century BC Greek physician
Aegimus or Aegimius ( or ) was one of the most ancient of the Greek physicians, who is said by Galen to have been the first person who wrote a treatise on the pulse. He was a native of Velia in Lucania, and is supposed to have lived before the time of Hippocrates, that is, in the 5th century BC. His work was entitled (Lat. "De Palpitationibus", a name which alone sufficiently indicates its antiquity), which is no longer extant. 
Athenaeus (2nd century AD) mentions that Callimachus (3rd century BC) used to have a work by "Aegimius" that described the art of making cheesecakes (), and Pliny the Elder mentions a person of the same name who was said to have lived two hundred years; but whether these are the same or different individuals is quite uncertain.
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