The designation "Medical Writers Anonymous" refers to a collection of about two dozen Greek medical handbooks written between the 1st and 6th centuries CE. The authors of these practical texts are unknown, which was common for technical works where the utility of the information was more important than the fame of the writer. According to modern scholars, these anonymous writers were likely practicing physicians or teachers working within the broad tradition of Greek medicine, possibly based in major centers like Alexandria or Constantinople.

Their surviving works include treatises on topics such as acute and chronic diseases, women's health, urine analysis, pulse diagnosis, medical ethics, and drug recipes. Written in straightforward, technical Greek, these texts served as guides for doctors and students. They compiled and simplified knowledge from earlier authorities like Hippocrates and Galen, while also incorporating folk remedies and everyday practices.

This anonymous corpus is significant because it provides a window into the mainstream medical practice of the Roman and early Byzantine periods, beyond the theories of famous individual doctors. The texts show how classical medical knowledge was adapted for daily use in diagnosis and treatment. Their influence was long-lasting; they were translated into Syriac, Arabic, and Latin and became foundational sources for medical knowledge in the Middle Ages and Renaissance. Their collective, anonymous nature itself highlights a tradition where practical knowledge was often treated as a shared professional resource.