Lady Sarashina is an opera in nine tableaux by Hungarian composer Péter Eötvös to a libretto by Mari Mezei, based on As I crossed a Bridge of Dreams, fragments of an 11th-century diary (Japan, 1008). It premiered on 4 March 2008 at the Opéra National de Lyon. The opera is the result of a commission by the opera in Lyon; it was broadcast in full on France Musique on 27 September 2008.