The name of the dog in “The Wizard of Oz” is Toto. Toto is Dorothy Gale’s small, black terrier and is one of the most famous dog characters in film history. Toto accompanies Dorothy on her journey through the Land of Oz and helps her confront the Wicked Witch of the West. The dog was portrayed by a female Cairn Terrier named Terry in the 1939 film adaptation of L. Frank Baum’s book. Toto’s character has appeared in numerous adaptations and sequels to the original “The Wizard of Oz” story.