In Greek mythology, Astris (Ancient Greek: Ἀστρὶς, lit. 'derived from ἀστήρ astêr meaning 'star' or 'starry') or Asteria^[1] was, in Nonnus's Dionysiaca,^[2] one of the Heliades, daughters of Helios, either by the Oceanid Clymene^[3] or the Oceanid Ceto.^[4] She married the river god Hydaspes (the modern Jhelum River) and became mother of Deriades, king of the Indians.^[5]

The third stage of the ELDO Europa rocket was named after the deity : Astris.^{[citation needed]}

• Heliades
• Heliadae
• Phaethon

• Nonnus, Dionysiaca; translated by Rouse, W H D, II Books XVI–XXXV. Loeb Classical Library No. 345, Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1940. Internet Archive
• Parada, Carlos, Genealogical Guide to Greek Mythology, Jonsered, Paul Åströms Förlag, 1993. ISBN 978-91-7081-062-6.