Ryukyu Dog
Also known as Ryukyu Inu · Ryukyu Ken · Okinawa Native Dog
Japan, Spitz and northern dogs
- Size
- Medium
- Height
- 43–50 cm
- Weight
- 15–20 kg
- Life expectancy
- 13–16 yrs
- Quiet
- Brave
- Agile
- Intelligent
Heights and weights are typical adult ranges; individual dogs vary.
The Ryukyu Dog is a medium-sized hunting dog from Okinawa and Ishigaki Island, often brindled and looking rather like a Kai Ken. It was bred to track and bay wild boar, and some individuals have working rear dewclaws that help them climb. It is endangered, with roughly 400 dogs counted in 2015.
Size
- Size
- Medium
- Height at shoulder
- 43–50 cm
- Adult weight
- 15–20 kg
Typical adult ranges. Males are often at the top of the range and females at the bottom. Most reach adult size by around 12 months.
Lifespan
13–16 years
Most Ryukyu Dogs live 13–16 years. Like other medium dogs, they're usually considered senior from about 8, when twice-yearly vet checks help catch problems early. Keeping them lean is one of the most effective things you can do for a long life. How old is that in human years?
Temperament
The breed is described as quiet, brave, intelligent and steady, and is usually playful and good with children. It has a strong prey drive and should not be trusted with small pets, although many accept cats raised with them.
- Quiet
- Brave
- Agile
- Intelligent
Food
For a typical 17.5 kg adult- Energy
- ≈ 960 kcal
- a day, neutered adult
- Water
- 700 ml–1.1 L
- a day, from all sources
- Most adults do well on two measured meals a day rather than one large one.
- Choose a complete food for their life stage, and ask your vet before changing diet if they have a health condition.
Starting points only — age, activity and the food itself change the numbers. Work out portions for your dog · Foods to avoid
Exercise
90–120 min a dayIt needs plenty of physical and mental exercise every day. Many are agile climbers and escape artists, so secure fencing matters.
Grooming & shedding
The short coat, single or double, needs a weekly brush.
Health
Training should be calm and consistent, with plenty of mental challenges. Health is not well documented, but breeders outside Japan are urged to screen for hip and elbow dysplasia, patellar luxation, eye disease and hypothyroidism. The small founding population makes inbreeding a real concern.
The breed can be prone to
- Inbreeding risk in a very small population
- Hip dysplasia
- Elbow dysplasia
- Patellar luxation
- Glaucoma
- Hypothyroidism
Health tests to ask a breeder about
- Hip and elbow scoring
- Patella examination
- Eye examination
- Thyroid testing
Not every Ryukyu Dog is affected, and this isn't a diagnosis. See common conditions and the symptom checker.
History
Okinawan hunters used these dogs in packs on Ryukyu wild boar. The pure breed was feared lost after the Second World War because of food shortages and crossbreeding, until surviving dogs were found in the Yanbaru forest in the early 1980s. A preservation society was founded in 1990, and the breed became a prefectural natural monument in 1995.
- Country of origin
- Japan
- Type
- Spitz and northern dogs
- Recognition
- Recognised only by the Ryukyu Inu Hozonkai (preservation society); a natural monument of Okinawa Prefecture; not recognised by the FCI, AKC or The Kennel Club
Is a Ryukyu Dog right for you?
Could suit
- Active owners who enjoy long walks, running or hiking
- People who'd rather not spend much time grooming
- Owners ready for a long commitment — often well into their teens
Think twice if
- You can't give well over an hour of exercise a day, every day
Cost to keep
About average- Moderate food and insurance costs
- Little or no professional grooming needed
- A 13–16 year commitment
- Budget for breed-related health checks or insurance
A relative guide, not a price — costs vary a lot by country, insurer and lifestyle.
Not sure? Try the breed finder.
Ryukyu Dog FAQ
How big does a Ryukyu Dog get?
Adult Ryukyu Dogs typically stand about 43–50 cm at the shoulder and weigh around 15–20 kg. Individuals vary, and males are often larger than females.
How long do Ryukyu Dogs live?
Typically 13–16 years. Keeping them lean, active and up to date with vet checks gives the best chance of a long, healthy life.
How much exercise does a Ryukyu Dog need?
As a guide, around 90–120 minutes a day, split between walks, play and sniffing time. Puppies and older dogs need shorter, gentler sessions.
How much grooming does a Ryukyu Dog need?
An occasional brush is plenty. Check ears, teeth and nails as part of the routine.
Are Ryukyu Dogs easy to train?
Generally trainable with consistent, reward-based practice.
Do Ryukyu Dogs shed?
A moderate amount. Regular brushing keeps loose hair under control.
Are Ryukyu Dogs good with children?
They usually do well with children. Always supervise young children with any dog, and teach them to give the dog space.
Can a Ryukyu Dog live in a flat?
It's usually a challenge — as long as they get enough daily exercise and time outdoors.
What health problems do Ryukyu Dogs have?
The breed can be prone to inbreeding risk in a very small population, hip dysplasia, elbow dysplasia. Not every Ryukyu Dog is affected — ask a breeder about health testing, and your vet about what to watch for.
Written by the Petopedia editorial team to our editorial standards. General guidance, not veterinary advice.