- All white or white with lemon, brown, blue or badger pied markings on head and ears.
- Undesirable: Much black and heavy ticking
About the Sealyham Terrier
Origin: Great Britain
- Typical life span
- 12-14 years
- Size
- Medium — from its typical weight
- Weight
- Male
- 10-11 kg
- Female
- 9.5-10 kg
- Height
- 27-28 cm
- FCI status
- Recognised by FCI
- FCI group
- Terriers
- Origin
- Great Britain
- Known hereditary risks
- Not researched yet
About
What is a Sealyham Terrier?
Small, sturdy white terrier with rectangular body shape, long hard wiry coat, and distinctive beard and furnishings on face and legs
Sealyham Terrier history and origins
Developed in the mid-19th century by Captain John Edwardes at his Sealy Ham estate in Wales for hunting badgers foxes and otters. Recognized by The Kennel Club in 1910 and AKC in 1911
Sealyham Terrier appearance and size
Males typically weigh 10-11 kg and females 9.5-10 kg.
What the breed standard says
- Bred for
- Terrier
- Behaviour and temperament
“Sturdy, game and workmanlike. Alert and fearless but of friendly disposition”
Quoted from FCI standard n°74. It describes the breed the registry recognises, not any individual animal.
Breed reference from The Dog API.
Characteristics
- Size
- Medium
- Exercise needsRead from what the breed was bred to do, in the registry’s own words: “Terrier” That is a working purpose, not a measured exercise requirement — an individual dog’s needs depend on its age, health and household.
- 4 of 5
- Easy to train
- —
- Amount of shedding
- 3 of 5
- Grooming needs
- 4 of 5
- Good with children
- —
- Cost to keep
- —
- Tolerates being alone
- —
- Intelligence
- —
- Health of breed
- Not researched yet
Pros & cons
Pros & cons for the Sealyham Terrier
What you get with the Sealyham Terrier
- Purpose stated in the standard: “Terrier”
- The standard describes the breed as: “Sturdy, game and workmanlike. Alert and fearless but of friendly disposition”
What you are taking on
- High grooming needs — the standard’s own description is “Long, hard and wiry topcoat with weather-resistant undercoat”
Drawn from sources rather than written as an opinion — cited health research, the registry’s own standard, and peer-reviewed longevity. FCI breed standard. One breeder’s animals can differ from any of it, and an empty column means we hold nothing for that side rather than that there is nothing to say.
Characteristics
FCI standard · Sealyham Terrier
Coat and colour
As the FCI standard sets it out. Every line below is the standard’s own wording, tagged undesirable.
Coat
Long, hard and wiry topcoat with weather-resistant undercoat
Colour
- Preferred
- Permissible
- Undesirable
- Disqualifying
Preferred, permissible, undesirable and disqualifying are FCI’s own words about the breed. They describe what the standard asks for — not an assessment of any individual dog, and not ours.
Shortened from FCI standard n°74 — each label is the standard’s own wording with the verdict lifted into the tag beside it. Read the full clause at source.
What the breed standard says
- Size
- “Height should not exceed 31 cm (12 ins) at shoulder. Ideal Weight: Dogs approximately : 9 kg (20 lbs), Bitches approximately : 8,2 kg (18 lbs). General conformation, overall balance, type and substance are main criteria”
- FCI distinguishes an ideal from what is permitted.
Quoted from FCI standard n°74. It describes the breed the registry recognises, not any individual animal.
Breed-level information from The Dog API. It describes the Sealyham Terrier in general; any individual animal can differ.
Health guide
What to ask for in a Sealyham Terrier
No breed-specific health panel has been written up for the Sealyham Terrier on this platform yet. That is a gap in our records, not a clean bill of health — ask the breeder which hereditary conditions their lines are tested for, and ask to see the results for both parents, dated and from a named laboratory.
Gallery
No photographs yet
This is where Sealyham Terrier owners’ own photographs will go, from the pet profiles they keep here. Nobody has added one to a public page yet.
A photograph in a pet profile stays private to its owner. We will not put one here unless they ask us to.
Puppies
No puppies listed right now
No Sealyham Terrier breeder has a record on this platform yet, so there is nothing to list. That is a gap in our coverage, not a fact about the breed.