The African Boerboel is a very large, muscular and impressive looking breed. They are often confused for a cross between a Mastiff and a Bulldog, however they are a unique breed that has been developed in Africa as a protection and working dog. In this breed males are distinctly masculine in appearance as the females are smaller, slighter and should be definitely female in all aspects.

The African Boerboel is very distinctive in appearance. The head is very square in shape with a short, thick muzzle and wide massive head. The skull is somewhat flat between the high set ears and there is a stop that is noticeable but not sharp. The ears are triangular and folded, held very close to the head. The eyes are horizontal in orientation and can be any color of brown that is in keeping with the coat color. The skin around the eyes should be dark regardless of the eye color. The area between the eyes is well filled and solid in appearance, as are the noticeable cheeks. The dogs may or may not have a black mask that covers the muzzle and the top lip. The top lip is somewhat fleshy and thick in appearance but should not hang down over the lower jaw. The nose is black with well developed nostrils. The head is one of the most distinguishing of the African Boerboel breed.

The neck of the African Boerboel is arched and muscular, adding to the breed's appearance of strength and protection. The shoulders of the dog are very well developed and strong, with the neck positioned high on the shoulders. The chest is deep and broad, flowing into a well developed rib cage and a sturdy, yet not chunky or disproportionately heavy looking body. The front legs are completely straight when viewed from the side or the front and end in thick padded, ball-shaped feet.

The top line is very straight without any noticeable sloping. The back is moderately long but balanced in appearance. The hindquarters are slightly sloping towards the high set tail. The tail is traditionally docked to the first three joints, but may also be left long and natural, in which case it curves up at the hock. The back legs are incredibly powerful with heavy muscling that is common in the Mastiff breeds. The legs should be well bent and carried under the hindquarters and unlike the front legs they should not be straight.

The African Boerboel should move with purpose and a "buoyant" step. They have a fluid and athletic gait, not a heavy or shuffling gait. Their joints are well developed and not loose or bulky. They do not have the heavy wrinkles or deep folds of skin seen on many of the Mastiff breeds, however there will be slight wrinkling of the thick skin on the brow.