Brief historical summary
The Rhodesian Ridgeback is presently the only registered breed indigenous to Southern Africa. Its forbears can be traced to the Cape Colony of Southern Africa, where they crossed with the early pioneers’ dogs and the semi-domesticated, ridged, Hottentot hunting dogs. Hunting mainly in groups of two or three, the original function of the Rhodesian Ridgeback, or Lion Dog, was to track game, especially lion, and with great agility, keep it at bay until the arrival of the hunter.

The original standard, which was drafted by F R Barnes, in Bulawayo, Rhodesia, in 1922, was based on that of the Dalmatian and was approved by the South African Kennel Union in 1926.

General appearance
The Rhodesian Ridgeback should represent a well-balanced, strong, muscular, agile and active dog, symmetrical in outline, and capable of great endurance with a fair amount of speed. The emphasis is on agility, elegance and soundness with no tendency towards massiveness.

The peculiarity of the breed is the ridge on the back, which is formed by the hair growing in the opposite direction to the rest of the coat. The ridge is the escutcheon of the breed. The ridge must be clearly defined, symmetrical and tapering towards the haunch. It must start immediately behind the shoulders and continue to the hip (haunches) bones. The ridge must contain only two crowns, identical and opposite each other. The lower edges of the crowns must not extend further down the ridge than one-third of its length. A good average width of the ridge is 5cm (2ins).

Dignified, intelligent, aloof with strangers, but showing no aggression or shyness.

Cranial region
SkullShould be of a fair length (width of head between ears, distance from occiput to stop, stop to end of nose, should be equal), the skull flat and broad between the ears and the head should be free from wrinkles when in repose.
StopThe stop should be reasonably well defined and not in one straight line from the nose to the occipital bone.
Facial region
NoseThe nose should be black or brown. A black nose should be accompanied by dark eyes, a brown nose by amber eyes.
MuzzleThe muzzle should be long, deep and powerful.
LipsThe lips should be clean, closely fitting the jaws.
MouthJaws strong, with a perfect and complete scissor bite, i.e. the upper teeth closely overlapping the lower teeth and set square to the jaws. The teeth must be well developed, especially the canines or holders.
CheeksCheeks should be clean.
EyesShould be moderately well apart, round bright and sparkling, with intelligent expression, their colour harmonising with the colour of the coat.
EarsShould be set rather high, of medium size, rather wide at base, and gradually tapering to a rounded point. They should be carried close to the head.
NeckShould be fairly long, strong and free from throatiness.
LoinsStrong, muscular and slightly arched, powerful.
ChestShould not be too wide but very deep and capacious and brisket should reach to the elbow.
ForechestShould be visible when viewed from the side.
RibsModerately well sprung, never rounded like barrel-hoops.
TailShould be strong at the root and gradually tapering towards the end, free from coarseness. It should be of moderate length. It should not be inserted too high nor too low, and should be carried with a slight curve upwards, never curled.
ForequartersThe forelegs should be perfectly straight, strong and well boned, with the elbows close to he body. When viewed from the side, the forelegs should be wider than when viewed from the front. Pastems should be strong with slight spring.
ShouldersThe shoulders should be sloping, clean and muscular, denoting speed.
FeetThe feet should be compact and round, with well arched toes, and tough elastic pads, protected by hair between the toes and pads.
HindquartersIn the hind legs the muscles should be clean, well defined, good turn of stifle and strong hocks well let down.

Straight forward, free and active.

Hair should be short and dense, sleek and glossy in appearance, but neither woolly nor silky.

Light wheaten to red wheaten. A little white on the chest and toes is permissible, but excessive white hairs here, on belly, or above toes is undesirable. A dark muzzle and ears permissible. Excessive black hairs throughout the coat are highly undesirable.

The desirable heights are:

 Dogs63cm (25ins) to 69cm (27ins)
 Bitches61cm (24ins) to 66cm (26ins)

The desirable weights are:

 Dogs36.5kg (80lbs)
 Bitches32 kg (70lbs)

Any departure from the foregoing points should be considered a fault and the seriousness with which the fault should be regarded should be in exact proportion to its degree.