Excellent with Children, De-Wormed & Vet Checked! The Dogo Argentino is an Argentine breed of large dog of mastiff type. It was bred in the early twentieth century in Córdoba in central Argentina, primarily for dog-fighting, but also for hunting large game such as peccaries, wild boar and pumas. The foundation stock included a fighting dog of bulldog type, a Bull Terrier and a Mastín del Pirineo