Here's a breakdown of the classification:
* Domain: Eukarya
* Kingdom: Animalia
* Phylum: Chordata
* Class: Mammalia
* Order: Carnivora
* Family: Canidae
* Genus: Canis
* Species: Canis lupus familiaris
So, while we often think of dogs as being in a "kingdom" of their own, they are part of the larger and more inclusive Animal Kingdom, which encompasses all animals on Earth.