A member of the mastiff group, a descendant of the ancient Molosser. The Dogue de Bordeaux is one of the most ancient French breeds, skeletons dating to prehistoric times have been unearthed in France. Probably a descendant of the Alans and, in particular, the Alan Vautre, he is considered a rare breed today.
This breed, had suffered greatly during the two world wars, to the point of being threatened with extinction after the second world war. The Dogue de Bordeaux has a large head with lots of wrinkles, he is a very powerful dog, with a very muscular body. Stocky, athletic, imposing, his look alone is enough to deter. The Dogue de Bordeaux is gifted at guarding, which he does with vigilance and great courage, but without aggressiveness.
A good companion, very attached to his master and very affectionate. Calm, balanced with a high stimulus threshold, they are devoted, trustworthy, patient, calm, and faithful. An excellent pet, he will bond to his family and feel separation is a form of punishment. By nature, the Dogue de Bordeaux is on the lazy side and, at home, is like a huge snuggly toy.
The Bordeaux Mastiff is a massive, powerfully build dog, with a very muscular body which retains a harmonious general outline. In stature, somewhat low to the ground. Distance from sternum to ground is at most equal or inferior to the depth of the chest, seen in profile and measured behind the elbows. Has the appearance of an athlete, imposing and proud, demanding respect.
Weight for dogs is at least 50Kg; for bitches, at least 45Kg. Size should more or less correspond to head measurement. Males: 60-68 cm at the withers; bitches 58-66cm at the withers.
Height: Males: 23 1/2 to 26 1/2 inches Females: 22 1/2 to 25 1/2 inches
Weight: Males: Ideal weight is at least 110 lbs Females: Ideal weight is at least 99 lbs
An adult Dogue de Bordeaux should not weigh less.

Skull — In the male, the perimeter of the skull measured at the level of its greatest width corresponds to the height at the withers. In the females, it may be slightly less. Its volume and its shape are the consequences of the very important development of the temporal, supra-orbital ridges, zygomatic arches, and the spacing of the branches of the lower jaw. The upper region of the skull is slightly convex from side to side. Frontal-nasal depression of stop is very pronounced, almost at a right angle with the muzzle. The frontal groove is deep, diminishing towards the back of the head. The forehead dominates the face, yet is still wider than high.
Muzzle — Powerful, broad, thick, rather short, upper line very slightly concave, moderately obvious folds. Its width hardly decreases toward the end of the muzzle. When seen from above it has the shape of a square. In relation to the upper region of the skull, the line of the muzzle forms a obtuse angle upwards. When head is held horizontally, the front end of the muzzle is blunt, thick and broad at the base, is in front of a vertical tangent to the anterior face of the nose. Its perimeter is close to two thirds of that of the head. Its length varies between a quarter and a third of the total length of the head, from the nose to the occipital crest.
Nose — Broad, well opened nostrils, well pigmented black or brown according to the mask. Turned-up nose permitted.
Mouth — Jaws are very powerful and broad. Undershot bite. Lower jaw must project 0.5 cm minimum to 2 cm max. The incisors and canines must not be visible when mouth is closed. Teeth are very strong; strong canines; lower canines set wide apart and slightly curved. Incisors well aligned especially in lower jaw where they form an apparently straight line. Lips are thick, moderately pendulous, retractable, rounded over the lower jaw.
Eyes — Oval and set well apart. The space between the two inner angles of the eyelids equals about twice the length of the eye (eye opening). Frank expression. Hazel to dark brown for a dog with a black mask; lighter color tolerated but not desirable in subjects with a red mask.
Ears — Relatively small, of a slightly darker color than the coat. At its set on the ear base is slightly raised in front, but must fall back, without limpness along the cheeks. The tip is slightly rounded, must not reach much beyond the eye. Quite high set, at level of the upper line of the skull, the width of which they seem to accentuate even more.
Males should have two apparently normal testicles fully descended into the scrotum.