Eurylochus is a companion of Odysseus in Greek mythology.

Eurylochus may also refer to:

Eurylochus (Spartan general) (died 426 BC), Spartan general during the Peloponnesian War, killed at the Battle of Olpae Eurylochus, 6th century BC Thessalian general who fought in the First Sacred War Eurylochus, 4th century BC student of Pyrrho, along with Hecataeus of Abdera and others (the "Pyrrhoneans") Eurylochus (mythology), several other figures in Greek mythology Eurylochus, a character based on the mythological figure in EPIC: The Musical