There are also liver, brown, cream or red and white Boston Terriers, however these marking are rarer than the others listed above, and are disqualified from American Kennel Club events. Brindle is the preferred color according for a Boston Terrier to most breed standards but ideally, white should cover its chest, muzzle, band around the neck, half way up the forelegs, up to the hocks on the rear legs, and a white blaze between but not touching the eyes. For conformation showing, symmetrical markings are preferred.

Due to the Boston Terrier’s markings resembling formal wear, in addition to its refined and pleasant personality, the breed is commonly referred to as the “American Gentleman.”