Euphemus (archon)
Euphemus () was archon of Athens in 417/416 BC. In Thucydides, he is given a speech which portrays Athens as a tyrannical city. Archonship 
Euphemus gives his name to the year of his archonship in 417/416 BC. During his archonship, the Argive alliance with Athens is renewed and the Melian expedition is undertaken. Thucydides 
His speech rendered in Thucydides, Book 6 (72-88.2), as Athenian ambassador to Camarina gives reply to Hermocrates the Syracusan: "Euphemus responds in terms that characterize all Athenian political strategy as an assessment of imperial expediency." Athens has become a tyrant. Notes and references

5th-century BC Athenians
Eponymous archons