Baroness Marie von Ebner - Eschenbach (Czech: Marie von Ebner - Eschenbachová, German:Marie Freifrau von Ebner - Eschenbach; September 13, 1830 - March 12, 1916) was an Austrian writer. Noted for her excellent psychological novels, she is regarded — together with Ferdinand von Saar — as one of the most important German language writers of the latter portion of the 19th century.

She was born at the castle of Dubský (Graf von Třebomyslice) family in Zdislavice near Kroměříž in Moravia, Austrian Empire, and died in Vienna, Austria.

She is credited with the famous aphorism "even a stopped clock is right twice a day."