Peter John Nahum (born 19 January 1947) is an English art dealer, author, lecturer, and journalist best known for his frequent appearances on the BBC television programme Antiques Roadshow, in which he was present from 1981 to 2002.
Having been a Senior Director in the chairman's committee and advisor to the British Rail Pension Fund on Victorian Paintings.
He is a television personality, academic, lecturer, author, frame designer, and frequent lender of paintings to international exhibitions.
He appeared on Breakfast Television, The City Program, The Signals, The Sixty Minutes, and several radio talk shows.
he spoke on "The Strange Forces around the Finding of Richard Dadd’s Artist’s Halt in the Desert", for the National Arts Collection Fund.