the meaning of the name dean
English Meaning: The name Dean is an English baby name. In English the meaning of the name Dean is: From a surname derived from the Old English 'denu', meaning valley. Famous bearers: American actor and singer Dean Martin, American statesman Dean Acheson.n English the meaning of the name Dean is: From a surname derived from the Old English 'denu', meaning valley. Famous bearers: American actor and singer Dean Martin, American statesman Dean Acheson.