The American Kennel Club (AKC) does register Jack Russell-type terriers, just not under the name “Jack Russell Terrier.” The AKC splits the type into two breeds by height: the Parson Russell Terrier and the Russell Terrier. Meanwhile, the Jack Russell Terrier Club of America (JRTCA) keeps the original name and one broad height range, and its members agree not to register with conflicting organizations. The result is that the same small terrier can carry different names, different height verdicts, and different papers depending on which registry is involved.
Why won’t the AKC register a dog as a Jack Russell Terrier?
The AKC retired the name “Jack Russell Terrier” and now registers the type as either a Parson Russell Terrier or a Russell Terrier. According to a 2005 Ninth Circuit court opinion, “Effective April 1, 2003, the official name of the AKC breed of Jack Russell Terrier was changed to the ‘Parson Russell Terrier.'” The AKC later added the shorter Russell Terrier, which reached full recognition in the Terrier Group on June 27, 2012. So a Jack Russell-type puppy with AKC papers will show one of those two breed names, never “Jack Russell Terrier.”
The JRTCA takes the opposite position on those two AKC breeds. The JRTCA variants page states that the AKC now “recognizes” two variants of the Jack Russell, and that these “are considered separate and different breeds.” In the JRTCA view, the AKC variants “are NOT the TRUE Jack Russell Terrier and are not registerable with the JRTCA.” That disagreement over names is the real reason a buyer searching for “AKC Jack Russell” papers comes up empty.
What happened to the AKC’s Jack Russell Terrier in 2003?
On April 1, 2003, the AKC renamed its Jack Russell Terrier breed the Parson Russell Terrier. The AKC had recognized the breed under the Jack Russell name in the late 1990s. The AKC’s own “Breeds by Year Recognized” list gives 1997, while the Ninth Circuit opinion gives 1998. The JRTCA, founded in 1976, had kept its own registry for the Jack Russell long before the AKC entered the picture.
The name change came with a height standard. The current AKC Parson Russell Terrier standard took effect on September 29, 2004, and it sets an ideal height of 14 inches for dogs and 13 inches for bitches. The Parson Russell standard also notes a build “usually between 13 to 17 pounds” in hard working condition. The shorter Russell Terrier standard was approved in May 2009 and took effect on January 1, 2010, before full recognition in 2012.
How tall is too tall for a Jack Russell, Parson Russell, or Russell Terrier?
The answer depends entirely on the registry: 12 inches is the ceiling for an AKC Russell Terrier, 15 inches for an AKC Parson Russell, and 15 inches for a JRTCA Jack Russell. The AKC Russell Terrier standard calls for a height “from 10 inches to 12 inches” and lists “Height under 10 inches or over 12 inches” as a disqualification. The AKC Parson Russell standard disqualifies “Height under 12 inches or over 15 inches.” The JRTCA describes a terrier “between 10″ and 15″ at the shoulder.”
A 13-inch terrier shows how sharp these lines are. That 13-inch dog is disqualified as an AKC Russell Terrier, yet it sits inside the AKC Parson Russell range and inside the JRTCA range. Same dog, three registries, and two different verdicts. Anyone reading a listing that says “too tall for the breed standard” should ask which standard the seller means.
Height is taken at the withers, not the head. The JRTCA height page places the measuring wicket “at the top of the scapula (the highest point of the shoulder blade),” with the dog standing square on a flat surface, and “all four pads must be touching the measuring surface.” The JRTCA uses measuring heights of 10, 12 1/2, and 15 inches. The AKC Russell Terrier standard adds a chest check: the chest should be spanned by “an average size man’s hands, approximately 14 to 15 inches at the top set.”
How do the Jack Russell registries compare side by side?
Five registry entries cover the same terrier type, and only three of them use the name Jack Russell Terrier. The table below lists the name each registry uses and its height range, taken from each registry’s own standard.
| Registry | Name used | Height |
|---|---|---|
| JRTCA | Jack Russell Terrier | 10-15 in |
| AKC | Parson Russell Terrier | 12-15 in |
| AKC | Russell Terrier | 10-12 in |
| Royal Kennel Club | Jack Russell Terrier | 10-12 in |
| UKC | Jack Russell Terrier | 10-12 in |
The United Kennel Club (UKC) standard is a useful exception to the hard cut-offs above. The UKC Jack Russell Terrier stands 10 to 12 inches and is about 11 to 13 pounds, but a dog over 12 inches is a serious fault rather than an automatic disqualification. The UKC penalizes out-of-range dogs “only to the degree that their size affects their ability to work.” The UKC first recognized the breed as the Russell Terrier on January 1, 2001, then renamed it the Jack Russell Terrier on January 1, 2009.
Why can’t a Jack Russell be registered with both the JRTCA and the AKC?
The JRTCA’s Conflicting Organization Rule means JRTCA members “will not register their terriers with conflicting organizations,” and the AKC is one of them. The Ninth Circuit described that rule in Jack Russell Terrier Network v. AKC, decided on May 17, 2005. The JRTCA also refuses to register the AKC variants, as its variants page states.
For a buyer, the practical point is simple: dual JRTCA and AKC papers are not a given, and a seller who promises both deserves a follow-up question. The JRTCA’s full registration requirements and exact dual-registration wording are published on registry pages, so the safest step is to read those rules directly on the JRTCA site before paying a deposit.
Does the UK Kennel Club recognize the Jack Russell Terrier?
Yes. The Royal Kennel Club states that “The Jack Russell Terrier was given official recognition by The Kennel Club in 2016,” and the breed has held championship status since 2024. The Royal Kennel Club Board approved that status on April 13, 2023. The UK standard sets a height of “25-30 cms (10-12 ins)” and a chest girth of about 40 cm to 43 cm.
The UK name does not line up with the AKC name. A UK Jack Russell at 10 to 12 inches matches the AKC Russell Terrier size, not the AKC Parson Russell. The Royal Kennel Club keeps a separate Parson Russell Terrier standard with an ideal of 36 cm (14 in) for dogs and 33 cm (13 in) for bitches. So an imported “Jack Russell” is not automatically an AKC Parson Russell.
The breed is popular in Britain too. The Royal Kennel Club reported a 75% rise in Jack Russell puppy registrations in the first quarter of 2025 compared with the first quarter of 2024. “The Jack Russell Terrier and the Cocker Spaniel are iconic British breeds,” said Charlotte McNamara, spokesperson for The Kennel Club.
Which papers should a Jack Russell puppy come with?
A Jack Russell puppy should come with papers that name one registry and one breed name, and those two details decide what the dog can be shown or bred as. Because the registries define the breed differently, the breed name on the certificate matters as much as the registry logo.
- Ask which registry issued the papers: JRTCA, AKC, UKC or the Royal Kennel Club
- Ask which breed name is printed: Jack Russell, Parson Russell or Russell Terrier
- For AKC papers, expect Parson Russell (12-15 in) or Russell Terrier (10-12 in)
- For JRTCA papers, expect the name Jack Russell Terrier and a 10-15 in range
- Treat a promise of both JRTCA and AKC papers as a question, not a feature
- For an imported UK Jack Russell, remember the 10-12 in UK size
The AKC welcomed the Russell Terrier in 2012 as a breed that “will make a wonderful companion for active people,” in the words of AKC spokesperson Lisa Peterson. Any of these terriers can be a good pet without papers at all. The papers only matter when the goal is showing, registry-based breeding, or simply knowing what the seller is actually selling.
Frequently asked questions
Is a Parson Russell Terrier the same as a Jack Russell Terrier? The Parson Russell Terrier is the AKC’s name for the breed it called the Jack Russell Terrier until April 1, 2003. The JRTCA considers the Parson Russell a separate variant, and its standard allows 12 to 15 inches rather than the JRTCA’s 10 to 15 inches.
Can a 13-inch Jack Russell get AKC papers? A 13-inch terrier falls inside the AKC Parson Russell range of 12 to 15 inches but is disqualified as an AKC Russell Terrier, whose limit is 12 inches.
Is the Russell Terrier just a short Jack Russell? The AKC Russell Terrier is a separate AKC breed standing 10 to 12 inches. That range matches the Royal Kennel Club and UKC Jack Russell standards, which also sit at 10 to 12 inches.
Sources
- American Kennel Club, “Official Standard of the Russell Terrier” (approved May 2009, effective 2010-01-01) – https://images.akc.org/pdf/breeds/standards/RussellTerrier.pdf
- American Kennel Club, “Official Standard of the Parson Russell Terrier” (effective 2004-09-29) – https://images.akc.org/pdf/breeds/standards/ParsonRussellTerrier.pdf
- American Kennel Club, “American Kennel Club Welcomes a New Terrier to the Family” (2012-06-27) – https://www.akc.org/press-releases/american-kennel-club-welcomes-a-new-terrier-to-the-family/
- American Kennel Club, “Breeds by Year Recognized” – https://www.akc.org/press-center/articles-resources/facts-and-stats/breeds-year-recognized/
- The Royal Kennel Club, Jack Russell Terrier breed standard (updated 2025-01-01) – https://www.royalkennelclub.com/breed-standards/terrier/jack-russell-terrier/
- The Royal Kennel Club, Jack Russell Terrier breed page – https://www.royalkennelclub.com/search/breeds-a-to-z/breeds/terrier/jack-russell-terrier
- The Royal Kennel Club, Parson Russell Terrier breed standard (updated 2025-04-01) – https://www.royalkennelclub.com/breed-standards/terrier/parson-russell-terrier/
- The Royal Kennel Club, “Three breeds given championship status” (2023-04-18) – https://www.royalkennelclub.com/about-us/resources/media-centre/2023/april/three-breeds-given-championship-status
- The Royal Kennel Club, “Arise, the Jack Russell” (2025-05-29) – https://www.royalkennelclub.com/about-us/resources/media-centre/2025/may/arise-the-jack-russell-royal-favourite-surges-in-popularity
- U.S. Court of Appeals, Ninth Circuit, Jack Russell Terrier Network of Northern California v. American Kennel Club, 407 F.3d 1027 (2005-05-17) – https://openjurist.org/407/f3d/1027/jack-russell-terrier-network-of-northern-california-v-american-kennel-club-inc
- United Kennel Club, Jack Russell Terrier breed standard (revised 2017-05-01) – https://www.ukcdogs.com/jack-russell-terrier
- Jack Russell Terrier Club of America, “Jack Russell – Parson Russell – Russell Terrier?” – https://www.therealjackrussell.com/jrtca/jrtvariants.php
- Jack Russell Terrier Club of America, height measurement page – https://www.therealjackrussell.com/trial/height.php