Rodrigue et Chimène is an unfinished opera in three acts by Claude Debussy. The French libretto, by Catulle Mendès, is based on the plays Las Mocedades del Cid by Guillén de Castro y Bellvís and Corneille's Le Cid which deal with the legend of El Cid. It was first staged in a version completed by Edison Denisov in Lyon on 14 May 1993.

Rodrigo Díaz de Vivar was a Castilian knight and ruler in medieval Spain. Fighting both with Christian and Muslim armies during his lifetime, he earned the Arabic honorific as-Sayyid, which would evolve into El Çid, and the Spanish honorific El Campeador. He was born in Vivar, a village near the city of Burgos. As the head of his loyal knights, he came to dominate the Levante of the Iberian Peninsula at the end of the 11th century. He reclaimed the Taifa of Valencia from Muslim control for a brief period during the Reconquista, ruling the principality as its lord from 17 June 1094 until his death in 1099. His wife, Jimena Díaz, inherited the city and maintained it until 1102 when it was reconquered by the Moors.