(Τευτίαπλος), an Elean, was one of the leaders of the Peloponnesian fleet which was sent under Alcidas, the Lacedaemonian, as admiral, to support Mytilene in its revolt from Athens, B. C. 427. The Mytilenaeans, however, had surrendered to Paches before the friendly armament reached the coast of Asia, and Teutiaplus then endeavoured, but without success, to persuade Alcidas to attempt the recovery of the island by a sudden attack. (Thuc. 3.16, 29, 30.)