Cephalus or Kephalos (; ) is the son of Hermes, and a hero-figure in Greek mythology. Cephalus carried as a theophoric name by historical persons. The root of this name is , meaning "head".
Cephalus, son of Lysanias from Syracuse (5th century BCE), a wealthy metic and elderly arms manufacturer living in Athens who engages in dialogue with Socrates in Plato's Republic. He was the father of orator Lysias, philosopher Polemarchus and Euthydemus.
Cephalus, Athenian orator who flourished after the time of the Thirty Tyrants.