A purebred Italian greyhound and purebred Chihuahua mix is called an Italian greyhuahua. The American Kennel Club does not recognize hybrid breeds like the Italian greyhuahua.
The Italian greyhuahua is a strong, fast dog that looks like an Italian greyhound with the stocky build of a Chihuahua. It comes in three different colors: black, black and tan, and brown and gray. In general, this breed is affectionate, intelligent and active. It loves to please its family and is very loyal and good-natured. The Italian greyhuahua stands 8 to 15 inches high and weighs 6 to 18 pounds when full-grown. The life expectancy for the Italian greyhuahua is 13 to 16 years.