The Azteca horse, also known simply as the Azteca, is a breed of horse that was developed in Mexico in 1972 by crossbreeding Andalusians, which were imported, Criollos, and Quarter horses for the churros, or traditional horsemen, of the area. The Mexican Breeders Association for the Azteca Horse, or Associacion Mexicana de Criadores de Caballos de Raza Azteca, manages the original registry of the breed, although an international association was formed in 1992 known as the International Azteca Horse Association. A subtype of this breed was developed in America using the American paint horse which has its own registration association known as the Azteca Horse Registry of America. The breed is known for its skill in Western riding competitions, English riding competitions, and pleasure riding competitions.
The Azteca horse varies slightly in size depending upon the sex, with males reaching a height between 15 and 16.1 hands and females reaching a height between 14.3 and 16 hands. The head of this breed is straight and the neck slightly arched. The body is well muscled and can be any color, although grey is most common color. The American registry allows horses with non-solid pinto markings to be registered and other registries allow white markings on the lower legs and face. Each registry contains separate standards about bloodlines, only allowing horses to be registered if they meet certain genetic criteria.