The National Dog Show is an American all-breed benched conformation show sanctioned by the American Kennel Club and the Kennel Club of Philadelphia, which takes place on Thanksgiving each year and has been televised on NBC since 2002.

[6] The highly edited show is nationally televised (on tape delay) in the United States on NBC every Thanksgiving; the show airs after the network's coverage of the Macy's Thanksgiving Day Parade and airs at noon in all time zones except for Puerto Rico and the U.S. Virgin Islands which airs at 1 PM AST (due to NBC affiliates in these territories using the Eastern Time Zone feed), it also reairs every year either on the Friday or Saturday after thanksgiving in primetime or on the Sunday Afternoon after Thanksgiving.

Actor John O'Hurley and American Kennel Club judge David Frei host, and the show's presenting sponsor is Nestlé Purina PetCare.

NBC had attempted to fill the slot vacated by NBC's loss of Thanksgiving football rights four years prior; it had been airing the 1946 film It's a Wonderful Life in the time slot but found that the film was not doing well enough in the ratings to justify continuing to air it there.

NBC Sports's Jon Miller noted that the family atmosphere of Thanksgiving made the dog show a perfect fit for the slot after the parade, since pets are often considered an extension of the family unit, and surmised that viewers often had a rooting interest for the breeds of dogs they owned (which Miller dubbed an "alma mater effect").