Orestes was the son of Agamemnon and Clytemnestra in Greek mythology.

Orestes or Orestis may also refer to:

Other people Orestes (mythology), several figures in Greek mythology Lucius Aurelius Orestes (consul 157 BC) Lucius Aurelius Orestes (consul 126 BC), governor of Sardinia Orestes (prefect of Egypt) (fl. 415 AD) Orestes (father of Romulus Augustulus) (died 476 AD) Orestes (given name), including a list of people the name

Arts and entertainment Orestes (play), an Ancient Greek play by Euripides Orestes, a character in Sophocles's tragedy Electra Orestes, a character in Aeschylus's trilogy of Greek tragedies Oresteia "Orestes", a song by A Perfect Circle from the 2000 album Mer de Noms

Places Orestes, Indiana, United States Mount Orestes, Victoria Land, Antarctica Orestes Valley, Victoria Land, Antarctica Orestes Glacier, Victoria Land, Antarctica 13475 Orestes, an asteroid sharing the planet Jupiter's orbit

Other uses Orestes (insect), a genus of stick insects , the name of several Royal Navy ships , a United States Navy motor torpedo boat tender

See also Horestes, a Tudor morality play by John Pickering Oreste, an opera by Handel Oreste (given name) Orestis (region), in Upper Macedonia, and its inhabitants, the Orestae The Tragedy of Orestes, a play by Thomas Goffe first performed c. 1613–1618 and published 1633