Archedemus of Tarsus was a Stoic philosopher who lived during the 2nd century BCE. He was a student of Diogenes of Babylon, who led the Stoic school in Athens, and later became the teacher of Panaetius of Rhodes, a key figure in the development of Middle Stoicism. Ancient accounts report that Archedemus eventually left Athens to establish a Stoic school in his hometown of Tarsus.

None of Archedemus’s own writings survive today. He is known only through references in later authors, who mention titles of his lost works, such as On Voice and treatises on elements, justice, and dialectic. According to one ancient biographical source, his death was attributed to drinking bull’s blood, though this account is also associated with other historical figures and its accuracy is uncertain.

Modern scholars see Archedemus as an important connecting figure in the history of Stoicism. His position as a link between the earlier Athenian Stoics and the later, more adaptable Middle Stoicism of Panaetius helped transmit and transform the school’s teachings. By founding a school in Tarsus, he also contributed to the geographical spread of Stoic philosophy beyond its original center in Athens.