Orestia

Orestia may refer to:


 * Orestis (region), an ancient region of Epirotic Macedonia
 * The old name for Edirne, a city in Turkey
 * The Oresteia, a trilogy of Greek tragedies written by Aeschylus
 * Oresteia (opera), a Russian-language opera by Sergei Taneyev
 * Orestia (beetle), a genus of flea beetles