This breed of oriental saddle horses was formed in Kazakh, Akstafa and Tauz regions of Azerbaijan and adjacent areas of Georgia and Armenia. Specialists singled out a specific Deliboz type among large horse populations studied in the 1930s and late 1940s. Those horses were improved by Arabian and Karabakh saddle-type stallions.
Deliboz horses spread widely throughout western Azerbaijan.
In 1943 a State Breeding Cooperative was established to improve horse populations of the Republic. Since the 1950s Azerbaijan horses have been improved by Arabian and Tersk sires while Karabakh was bred separately. Crossbreeding involved horses of the Deliboz type. Deliboz horses differ from others by a clean, short head with a broad forehead and narrow nose, a compact heavy neck, a ribbed massive body with a good top line and an even, long back and loin. Legs are clean and well proportioned and the cannon bone girth is larger than that of other horses.