Neoclides (Ancient Greek: ÃÂõÿúûõïô÷ÃÂ, romanized: NeokleidÃÂs, b. about 420 BCE) was an ancient Greek mathematician. He was a younger contemporary of Plato and Leodamas of Thasos and himself served at the Platonic Academy. He also taught Leon. Otherwise, not much is known about him.