Protomachus

Protomachus was an Athenian general during the Peloponnesian War. When the Athenians got the news about the Battle of Notium, they were angry with Alcibiades, thinking that he had lost the ships through neglect of duty and dissolute conduct, and they chose ten new generals, including the Protomachus.

During the naval Battle of Arginusae, the right wing of the Athenian fleet was under his command, with fifteen ships. Beside Protomachus was Thrasyllus with fifteen ships.