Norman or Norman French (Normaund, French: Normand [nɔʁmɑ̃] , Guernésiais: Normand, Jèrriais: Nouormand) is a langue d'oïl spoken in the historical and cultural region of Normandy.
The name "Norman French" is sometimes also used to describe the administrative languages of Anglo-Norman and Law French used in England. For the most part, the written forms of Norman and modern French are mutually intelligible. The thirteenth-century philosopher Roger Bacon was the first to distinguish it along with other dialects such as Picard and Bourguignon.