Eurylochus

Eurylochus may refer to:
 * Mythological characters
 * Eurylochus (mythology), second-in-command of Odysseus' ship in Homer's Odyssey
 * Eurylochus, one of the sons of Aegyptus and Caliadne. He married (and was murdered by) Autonoe, daughter of Danaus and Polyxo
 * Eurylochus from Zacynthos, one of the suitors of Penelope. He spoke out against Odysseus in the Odyssey
 * Eurylochus, dragon-slayer of the mythological dragon Cychreides on the isle of Salamis
 * Historical characters
 * Eurylochus (Thessalian general) (6th century BC), Thessalian general from the Aleuadae family who fought in the First Sacred War
 * Eurylochus (Spartan general) (died 426 BC), Spartan general during the Peloponnesian War, was killed at the Battle of Olpae
 * Eurylochus (4th century BC), a student of Pyrrho along with Hecataeus of Abdera and others (the 'Pyrrhoneans')