Hippalus

thumb|Hippalus is credited by the Periplus of the Erythraean Sea|Periplus of the Erythreaen Sea as the first to discover the passage from the [[Red Sea to India over the Indian Ocean]]

Hippalus (Ancient Greek: Ἵππαλος) was a Greek navigator and merchant who probably lived in the 1st century BCE. He is sometimes conjectured to have been the captain of the Greek explorer Eudoxus of Cyzicus' ship.