Archemachus of Euboea (Ἀρχέμαχος ὁ Εὐβοεύς) was a Hellenistic historian from Euboea, active in the late 4th or early 3rd century BCE. He is known only through citations by later authors like Athenaeus and Stephanus of Byzantium [1]. His work belongs to the genre of local historiography (periegesis), which documented regional myths, legends, and history.

His sole known work, the Euboica (Εὐβοϊκά) or On Euboea (Περὶ Εὐβοίας), is now lost. It survives only in fragments preserved for their antiquarian and etymological content [1][2]. This prose work focused on the island’s early settlements, customs, and notable figures.

Archemachus is significant as a representative of early Hellenistic local history. His Euboica served as an important source for Euboean traditions, and its fragments contributed to preserving local lore within the broader stream of Greek historiography [1][2].

Sources 1. Oxford Research Encyclopedia of Classics: https://oxfordre.com/classics/view/10.1093/acrefore/9780199381135.001.0001/acrefore-9780199381135-e-734 2. Perseus Digital Library, Smith's Dictionary of Greek and Roman Biography and Mythology: http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0104%3Aentry%3Darchemachus-bio-1