(died 395 BC, Haliartus, Boeotia) Spartan leader in the Peloponnesian War. In his first year as admiral he won the support of the Persian king Cyrus the Younger. He defeated the Athenian fleet at Notium (406), causing the dismissal of Alcibiades. In 405 he destroyed the Athenian fleet at the Battle of Aegospotami; this action closed the grain route and starved the city into surrender. Lysander installed the Thirty Tyrants and made his friends governors of Athens's former empire. He suffered a defeat when Sparta allowed the restoration of democracy in Athens (403). Having led an army of Sparta's northern allies into Boeotia, he was killed while attacking Haliartus.