Jack Russell Terrier

Breeds and features
The breed's name has confused in countries where these terriers are loved. For example, Australia has the Parson Jack Russell Terrier and the Australian Jack Russell. In America, dogs like the British Parson are called Jack Russell Terriers. Even Parson Jack Russell Terriers exported from England to America cannot be registered in America as Parsons, only as Jack Russell Terriers.

These terriers were prized for their fearlessness, high energy, and keen hunting instincts. Over time, they became famous not only as working dogs but also as beloved companions. Today, Jack Russell Terriers are known for their spirited personalities and make excellent pets for active families. They continue participating in dog sports and activities, showcasing their agility and intelligence.
Jack Russell Terrier

FCI Standard No. 345 / 08.10.12 / JACK RUSSELL TERRIER
ORIGIN: England.
DEVELOPED IN: Australia.

A good working terrier capable of going to ground. An excellent companion dog.

Group 3 Terriers
Section 2 Small Terriers
With a working trial (optional)

The Jack Russell Terrier was bred in England in the 1800s thanks to the efforts of Reverend John Russell. He developed the breed to get fox terriers to run alongside hounds and go underground to flush out foxes and other game from their dens. Two variations were developed based on similar standards, differing mainly in height and proportions. The taller, more squarely built dog is now known as the Parson Russell Terrier, while the shorter, slightly elongated one is known as the Jack Russell Terrier.

A strong, active working terrier with a flexible body of medium length. Its movements are full of expression. Tail docking is optional. The coat can be smooth, rough (wire-haired), or broken (a mix of both).

The overall impression is that the dog is stretched in length, not height. The depth of the body from withers to brisket should equal the size of the front leg from elbow to ground. The girth behind the elbows should be approximately 15.7 to 16.9 inches.

Lively, active, and spirited terrier with an intelligent expression. Bold and fearless, friendly, calm, and trusting.
Jack Russell Terrier ammunition


Skull: The skull should be flat, moderately broad, gradually narrowing toward the eyes and the muzzle. Stop (the transition from the forehead to the muzzle): Well-defined but not strongly pronounced.


Nose: Black.

Muzzle: The length from the stop to the tip of the nose should be slightly less than from the stop to the occiput.

Lips: Tight-fitting, pigmented in black.

Jaws/Teeth: Jaws are very strong, deep, wide, and powerful. Strong teeth with a scissor bite.

Eyes: Small, dark, with a keen expression; eyes should not protrude; eyelids must close properly; eyelid rims should be pigmented in black; eyes almond-shaped.

Ears: Set high on the skull or hanging, ideally structured and mobile.

Cheeks: Cheek muscles should be well developed.

NECK: Strong, without faults, allowing the head to be carried balanced and proudly.


General Appearance: Rectangular.

Back: Straight; the distance from the withers to the base of the tail should be slightly more significant than the height from the withers to the ground.

Loin: Short, strong, and muscular.

Chest: Deep but not wide; the point of the chest, which should be defined, must be high at mid-height between the ground and withers. Ribs behind the elbows should be able to be spanned with two hands in a breadth of about 40-43 cm. The brisket should be distinctly visible in front of the shoulder.

TAIL: May hang at rest but must be held vertically when moving. If docked, the tip of the tail must align with the top of the ears.



Shoulder: Well laid back with not overly developed musculature.

Upper Arm: Of sufficient length and angulation to ensure the elbows are carried close to the body.

Forearm: Straight from elbows to toes when viewed from the front and the side.

Front Feet: Round, rigid, padded; not large, toes moderately arched, neither turned in nor out.


General Appearance: Strong and muscular, balanced in proportion to the forequarters.

Knee: With a good angle.

Hock Joint: Set low.

Rear Feet: Small, round, dense, padded, toes moderately arched, neither turned in nor out.

GAIT/MOVEMENT: Conforms to the standard, free, and springy.
Jack Russell Terrier Say Woof Blog

Hair: The coat can be smooth, rough (wire-haired), or broken; it should protect against weather; the coat should not be altered to give the appearance of being soft or wavy.

COLOR: Predominantly white with black or tan markings; tan markings can range from the lightest to chestnut.


Ideal Height: From 9.8 to 11.8 inches.

Weight: Should be equivalent to 2.2 lbs for each 1 inch of height, i.e., a 9.8-inch high dog should weigh approximately 11 lbs, and an 11.8-inch high dog should weigh 13.2 lbs.

FAULTS: Any deviation from the above points should be considered a fault and penalized according to the degree of deviation. However, these deviations and defects should be particularly penalized:

Lack of actual terrier characteristics.

Lack of balance, meaning exaggeration of any points.

Lethargic or ground-covering movements.


Aggressive or overly timid dog.

Any dog that exhibits physical or behavioral abnormalities should be disqualified.

N.B. (IMPORTANT NOTE): Dogs should have two normal testicles fully descended into the scrotum.