Odo of Bayeux was Bishop of Bayeux in Normandy, and was also made Earl of Kent in England following the Norman Conquest. He was the maternal half-brother of duke, and later king, William the Conqueror, and was, for a time, William's primary administrator in the Kingdom of England, although he was eventually tried for defrauding the William's government. It is likely Odo commissioned the Bayeux Tapestry a large tableau of the Norman Conquest, perhaps to present to his brother William. He later fell out with his brother over Odo's support for military adventures in Italy. William, on his deathbed, freed Odo. Odo died in Palermo Sicily on the way to crusade.

The Diocese of Bayeux and Lisieux is a Latin Church diocese of the Catholic Church in France. It is coextensive with the Department of Calvados and is a suffragan to the Archdiocese of Rouen, which is also in Normandy.