The Falabella takes its name from the family that developed and standardized the breed in Argentina over multiple generations. Juan Falabella continued the breeding work begun by Patrick Newtall in the 1860s, and subsequent family members including Julio C. Falabella formalized the registry and breed standards. The family name has become synonymous with the world's smallest horses.
Despite their diminutive size, Falabellas are classified as horses rather than ponies due to their proportions and bloodline. True ponies display specific conformational characteristics including shorter legs relative to body, thicker necks, and different head proportions. Falabellas maintain horse proportions scaled to miniature dimensions, resembling small Thoroughbreds or Arabs rather than Shetland Ponies or similar small breeds.
The Asociación de Criadores de Caballos Falabella (ACCF) in Argentina maintains the original breed registry and studbook, which remains closed to horses without documented Falabella ancestry. This closed studbook ensures breed purity but limits genetic diversity within the registered population. Purebred Falabellas traced through ACCF documentation are significantly rarer than horses simply called "Falabella" or miniature horses generally.
Other registries including the Falabella Miniature Horse Association (FMHA) and regional organizations maintain records for Falabellas in various countries. The American Miniature Horse Association and American Miniature Horse Registry accept Falabellas for registration alongside other miniature horse types. However, registration with these organizations does not guarantee pure Falabella breeding traceable to Argentine foundation stock.
