Leon of Salamis (/ˈliːɒn, -ən/; Ancient Greek: Λέων) was a historical figure, mentioned in Plato's Apology, Xenophon's Hellenica and Andocides' On the Mysteries (1.94).
In support of that claim, he cites two incidents in which he, at great personal risk, disobeyed unjust commands of the Athenian government.
(Apology 32c–d) From these texts, it is clear that Leon of Salamis had an honorable reputation, he was put to death by the Thirty, and his execution was publicly recognized as unjust and unwarranted.
McCoy cites ample textual evidence that Leon the general was one of the commanders of the Athenian fleet that was trapped in the harbor of Mytilene on the island of Lesbos by the Spartan blockade in the year 406 BC.
The Spartan commander Callicratidas was noted for treating his captives humanely (a rare characteristic in the ancient world) and likely would not have killed or enslaved the Athenian sailors and their officers, but would have repatriated them after the war ended.