Not necessarily so, wild dogs of Africa(they are called dogs)and the dingo’s, wild dogs of Australia. These are the only two I know of, but perhaps there are others around the world.
African wild dogs are in the dog family, but not in the same genus or species. From wiki -- "The African Wild Dog (Lycaon pictus) is a carnivorous mammal of the Canidae family"
The dingo's are considered to be descendants of feral dogs. Wiki -- "The Dingo (Canis lupus dingo) is a domestic dog"
These days dogs (Canis lupus familiaris) are considered to be subspecies of wolf (Canis lupus). The old idea that wolves were in a separate genus (Lupus lupus) is now rejected.
Naturally this is still a matter of controversy.