Breed library

Staffordshire Bull Terrier

Also known as Staffbull, Staffie, Staffy.

Staffordshire Bull Terrier photograph.
סאטף אנגלי.jpg - Or Logassi. CC BY-SA 4.0. Source: https://commons.wikimedia.org/wiki/File:%D7%A1%D7%90%D7%98%D7%A3_%D7%90%D7%A0%D7%92%D7%9C%D7%99.jpg. License: https://creativecommons.org/licenses/by-sa/4.0. License: CC BY-SA 4.0.

Breed overview

The Staffordshire Bull Terrier, also called the Staffy or Stafford, is a purebred dog of small to medium size in the terrier group that originated in the northern parts of Birmingham and in Staffordshire, for which it is named. They descended from 19th-century bull terriers that were developed by crossing bulldogs with various terriers to create a generic type of dog generally known as bull and terriers. Staffords share the same ancestry with the modern Bull Terrier, although the two breeds developed along independent lines, and do not resemble each other. Modern Staffords more closely resemble the old type of bull terrier and were first recognised as a purebred dog breed by The Kennel Club of Great Britain in 1935.

  • Breed classification: terrierBreed reference breed group.
  • Breed type: dog breedBreed reference breed kind.
  • Country of origin: EnglandBreed reference country of origin.

Breed facts

  • The unregulated breeding history and inconsistent genetic makeup of the Stafford's early ancestry have led to misconceptions about its origins.
  • Individual types and styles of crossbred dogs varied by geographic region.
  • Dog breeders made careful selections to reinforce inheritable traits from specific dog types.
  • Many of the mixed breed types, or mongrels that were used to create the early fighting dogs have long since evolved and stabilised into the modern purebred dogs we know today.
  • Many of the desirable phylogenetic traits of the breed's ancestry have been preserved and further refined by selective breeding to better suit the Stafford's modern purpose as a conformation show dog, while the unwanted traits have been bred out.

Size and appearance

The Stafford is short-haired, and of roughly equal length from the withers to the tail and from the withers to the ground. The coat is short, stiff and close. It may be white; black, blue, fawn or red, all with or without white; or any variety of brindle, with or without white. It has a broad head; the ears fold at the tip. It is muscular and well-boned, with strong shoulders, a wide chest and wide-set legs. It is agile and quite active. It is a terrier, and is so classified by the Kennel Club and the Fédération Cynologique Internationale. The dog usually stands 36 - 41 cm at the withers. Dogs weigh about 13 - 17 kg; bitches approximately 2 kg less.

  • Body mass reference: 11 - 15.4 kgAdult breed reference quantity from the article infobox. Original value 11 - 15.4 kg. Unit conversion where applicable: 1 inch = 2.54 cm; 1 pound = 0.45359237 kg. Original field and references are retained in the revision-pinned article evidence.
  • Body mass reference: Up to 15.4 kgBreed reference body mass. female, maximum.
  • Body mass reference: 11 kg or moreBreed reference body mass. female, minimum.
  • Body mass reference: 13 - 17 kgAdult breed reference quantity from the article infobox. Original value 13 - 17 kg. Unit conversion where applicable: 1 inch = 2.54 cm; 1 pound = 0.45359237 kg. Original field and references are retained in the revision-pinned article evidence.
  • Body mass reference: Up to 17 kgBreed reference body mass. male, maximum.
  • Body mass reference: 12.7 kg or moreBreed reference body mass. male, minimum.
  • Height reference: 36 - 41 cmAdult breed reference quantity from the article infobox. Original value 36 - 41 cm. Unit conversion where applicable: 1 inch = 2.54 cm; 1 pound = 0.45359237 kg. Original field and references are retained in the revision-pinned article evidence.
  • Height reference: Up to 40.5 cmBreed reference height. maximum.
  • Height reference: 35.5 cm or moreBreed reference height. minimum.
  • Coat length: short
  • Coat texture: smooth
  • Height category: medium
  • Weight category: medium

Personality and behavior

The Stafford has a reputation for pugnacity; when challenged by another dog it is known to not back away. They have a mixed reputation in the UK, with some people associating the breed with chavs. The Kennel Club notes that the breed is “bold, fearless and totally reliable” and well suited to families, with the breed standard noting its particular affinity with children.

  • Attachment and attention seeking (C-BARQ mean): 2.11 / 4Owner-reported attachment and attention seeking factor mean for US reference population Staffordshire Bull Terrier.
  • Chasing (C-BARQ mean): 2.19 / 4Owner-reported chasing factor mean for US reference population Staffordshire Bull Terrier.
  • Dog-directed aggression (C-BARQ mean): 0.95 / 4Owner-reported dog-directed aggression factor mean for US reference population Staffordshire Bull Terrier.
  • Dog-directed fear (C-BARQ mean): 0.68 / 4Owner-reported dog-directed fear factor mean for US reference population Staffordshire Bull Terrier.
  • Energy (C-BARQ mean): 2.27 / 4Owner-reported energy factor mean for US reference population Staffordshire Bull Terrier.
  • Excitability (C-BARQ mean): 2.12 / 4Owner-reported excitability factor mean for US reference population Staffordshire Bull Terrier.
  • Familiar-dog aggression (C-BARQ mean): 0.44 / 4Owner-reported familiar-dog aggression factor mean for US reference population Staffordshire Bull Terrier.
  • Non-social fear (C-BARQ mean): 0.64 / 4Owner-reported non-social fear factor mean for US reference population Staffordshire Bull Terrier.
  • Owner-directed aggression (C-BARQ mean): 0.06 / 4Owner-reported owner-directed aggression factor mean for US reference population Staffordshire Bull Terrier.
  • Separation-related problems (C-BARQ mean): 0.62 / 4Owner-reported separation-related problems factor mean for US reference population Staffordshire Bull Terrier.
  • Stranger-directed aggression (C-BARQ mean): 0.42 / 4Owner-reported stranger-directed aggression factor mean for US reference population Staffordshire Bull Terrier.
  • Stranger-directed fear (C-BARQ mean): 0.38 / 4Owner-reported stranger-directed fear factor mean for US reference population Staffordshire Bull Terrier.
  • Touch sensitivity (C-BARQ mean): 0.68 / 4Owner-reported touch sensitivity factor mean for US reference population Staffordshire Bull Terrier.
  • Trainability (C-BARQ mean): 2.69 / 4Owner-reported trainability factor mean for US reference population Staffordshire Bull Terrier.

Exercise and activities

The Stafford is considered a family pet and companion dog, and is among the breeds recommended by the KC for families. In the decade 2011-2020, annual registrations with the KC fell from about 7000 to about 5000; in 2019 and 2020 it had the highest number of registrations in the Terrier group. It is among the most frequently registered breeds in Australia, France, and New Zealand. In the United States, it was in 81st place on an AKC list of registrations by number in 2020.

Training and enrichment

Care planning: choose one everyday skill to practice and keep a record of each session. Note the cue, the reward your dog enjoys and what went well. Rotate familiar games and new activities, and use your notes to choose the next small step.

Coat and grooming

Care planning: use the coat details above to discuss a grooming routine with your groomer. Record brushing sessions, baths and appointments in the app. Add the tools you use and your preferred schedule so the whole household can follow the same routine.

  • Coat length: short
  • Coat texture: smooth

Health and lifespan

A 2022 UK study of veterinary records found the breed to have a life expectancy of 11.33 years, slightly below the life expectancy of crossbreeds: 11.82 but just above the overall average of 11.23 years. A 2024 UK study found a life expectancy of 12 years for the breed compared to an average of 12.7 for purebreeds and 12 for crossbreeds.

Living with this breed

Care planning: compare this profile's adult dimensions, coat care and available activity information with your household's routine. Make a shortlist, plan who will handle daily care and save the questions you want to ask a breed club, rescue or breeder.

Compare breeds

Compare supported adult height and weight ranges, matching research measures and sourced coat and care categories.

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Breed history

The unregulated breeding history and inconsistent genetic makeup of the Stafford's early ancestry have led to misconceptions about its origins. Individual types and styles of crossbred dogs varied by geographic region. For example, the progeny from one area may have a higher percentage of terrier than bulldog, whereas other reports claim that bulldog to terrier was preferred over bull and terrier to bull terrier. Dog breeders made careful selections to reinforce inheritable traits from specific dog types. Many of the mixed breed types, or mongrels that were used to create the early fighting dogs have long since evolved and stabilised into the modern purebred dogs we know today. Many of the desirable phylogenetic traits of the breed's ancestry have been preserved and further refined by selective breeding to better suit the Stafford's modern purpose as a conformation show dog, while the unwanted traits have been bred out.

Clubs and further reading

Sources

  1. Staffordshire Bull Terrier - WikipediaWikipedia contributors Retrieved 2026-10-14.License: CC BY-SA 4.0. Adapted excerpts from Wikipedia contributors, Staffordshire Bull Terrier, revision 1373582302. CC BY-SA 4.0. Formatting, citations and selection changed. Source history: https://en.wikipedia.org/w/index.php?title=Staffordshire_Bull_Terrier&action=history
  2. Wikidata structured breed dataWikimedia contributors Retrieved 2026-10-14.License: CC0 1.0. Wikidata contributors (CC0).
  3. National C-BARQ breed and all-breed means from USA.PLOS ONE / Figshare Retrieved 2026-10-14.License: CC BY 4.0. Bohland, Kyle R.; Lilly, Meghan Leanne; Herron, Meghan E.; Arruda, Andréia G.; O’Quin, Jeanette M. (2023). National C-BARQ breed and all-breed means from USA.. PLOS ONE. Dataset. https://doi.org/10.1371/journal.pone.0289356.s003 CC BY 4.0. Selected rows and field names adapted; values unchanged.
  4. File:סאטף אנגלי.jpgWikimedia Commons Retrieved 2026-10-14.License: CC BY-SA 4.0. סאטף אנגלי.jpg - Or Logassi. CC BY-SA 4.0. Source: https://commons.wikimedia.org/wiki/File:%D7%A1%D7%90%D7%98%D7%A3_%D7%90%D7%A0%D7%92%D7%9C%D7%99.jpg. License: https://creativecommons.org/licenses/by-sa/4.0.
  5. Palipaws everyday care planningPalipaws Retrieved 2026-10-14.License: Palipaws original factual summaries. Palipaws. Original care-planning text, separate from breed measurements and licensed article summaries.
  6. AKC national parent club directoryAmerican Kennel Club Retrieved 2026-10-14.License: Factual reference only. Names and verified external links only. No source descriptions, logos or endorsement reused.