In Greek mythology, Oizys (/ˈoʊɪzɪs/; Ancient Greek: Ὀϊζύς, romanized: Oïzús, lit. 'misery'^[1]), or Oezys, is the personification of pain or distress.^[2] In Hesiod's Theogony, Oizys is one of the offspring of Nyx (Night), produced without the assistance of a father.^[3] Oizys has no distinct mythology of her own.

According to the Roman authors Cicero and Hyginus, "Miseria" (Misery) is one of the offspring of the Nox (Night, the Roman equivalent of Nyx) and Erebus.^[4]

• Achlys
• Hybris (mythology)
• Ponos
• Algos

• Cicero, Marcus Tullius, De Natura Deorum in Cicero: On the Nature of the Gods. Academics, translated by H. Rackham, Loeb Classical Library No. 268, Cambridge, Massachusetts, Harvard University Press, first published 1933, revised 1951. ISBN 978-0-674-99296-2. Online version at Harvard University Press. Internet Archive.
• Gantz, Timothy, Early Greek Myth: A Guide to Literary and Artistic Sources, Johns Hopkins University Press, 1996, Two volumes: ISBN 978-0-8018-5360-9 (Vol. 1), ISBN 978-0-8018-5362-3 (Vol. 2).
• Gaius Julius Hyginus, Fabulae from The Myths of Hyginus translated and edited by Mary Grant. University of Kansas Publications in Humanistic Studies. Online version at the Topos Text Project.
• Hesiod, Theogony, in Hesiod, Theogony, Works and Days, Testimonia, edited and translated by Glenn W. Most, Loeb Classical Library No. 57, Cambridge, Massachusetts, Harvard University Press, 2018. ISBN 978-0-674-99720-2. Online version at Harvard University Press.
• Montanari, Franco, The Brill Dictionary of Ancient Greek, edited by Madeleine Goh and Chad Schroeder, Leiden, Brill, 2015. ISBN 978-90-04-19318-5. Online version at Brill.