St. Weiler

100-160 lbs
United States
Saint Bernard
Saint Weiler

The St. Weiler is a giant dog that weighs between 100 to 80 pounds. This mixed breed was developed from crossing a Saint Bernard with a Rottweiler. They are affectionate, loyal, protective, quiet, and friendly dogs. These hybrid dogs have a high tendency to drool as the Saint Bernard parent does, and usually shed moderately. St. Weilers gain weight easily, so they require regular exercise to stay in shape and keep healthy. These dogs are great property guardians and will let you know when an intruder is around. They are also lovely family members, and get along with children when exposed to them from puppyhood. 

Companion, Guardian
Date of Origin
Rottweiler, Saint Bernard

St. Weiler Health

Average Size
Male St. Weiler size stats
Height: 24-28 inches Weight: 120-180 lbs
Female St. Weiler size stats
Height: 22-26 inches Weight: 100-160 lbs
Major Concerns
  • Bloat
  • Eye Problems
  • Heart Problems
  • Hypothyroidism
Minor Concerns
  • Allergies
  • Epilepsy
  • Joint Dysplasia
Occasional Diagnoses
  • Panosteitis
  • Osteosarcoma
  • Gastric Dilation Volvulus
Occasional Tests
  • Allergy Tests
  • Blood Count
  • Full Body Physical Examination especially of the joints
  • Eye and Ear Examination

St. Weiler Breed History

The St. Weiler originated from crossing a Saint Bernard with a Rottweiler. The Saint Bernard comes from Switzerland, as does the Bernese Mountain Dog, the Entlebucher Cattle Dog, the Appenzeller Cattle Dog, and the Greater Swiss Mountain Dog. It is believed this breed descended from the Molossus, the Roman Mastiff-type dog, crossed with the native dogs in the Alps. Dogs in Switzerland were originally divided in two categories: Valley dogs, called Talhund, and Farm Dogs, called Bauernhund. The Saint Bernard began to be separated from these breeds when Archdeacon Bernard de Menthon arrived at the Saint Bernard Pass in 962 A.D. and founded a Hospice to help travellers. The Saint Bernards were used to guard the land and to protect the monks. Therefore, these dogs developed great tolerance for harsh cold weather and an ability for search and rescue. The Saint Bernards helped rescue over 2,000 people during three centuries. Saint Bernards were taken to England, where they were known as Sacred Dogs, in an attempt to improve the English Mastiff breed. Eventually, in 1880 this breed got its official name, the Saint Bernard. Due to crossbreeding, they became taller and thinner in other countries. In 1887 the first breed standard was established in the International Congress of Zurich. The American Kennel Club acknowledged the Saint Bernard in 1885. The Rottweiler is also a descendant from the Molossus, which Romans took with them to drive cattle during their journey to Germany. The Molossus mated with other dogs in Germany, creating new breeds, this being the origin of the Rottweiler. This breed got its name after a village they originated from, Rote Wil, in South Germany. The Rottweilers were used to drive cattle, and to keep money safe from robbers, as their owners would tie it around the dog’s neck. The Rottweilers also helped pulling carts of meat, until the rail appeared. After that these dogs became almost extinct, until in 1901 the first breed standard was written. The Rottweilers became highly popular for police work thanks to their great working capability. This breed was taken to America in the late 1920s by German emigrants. The Rottweiler was recognized by the American Kennel Club in 1931. 

St. Weiler Breed Appearance

This giant-sized dog stands between 22 to 28 inches tall, and weighs from 100 to 180 pounds. His head is wide with floppy ears and almond eyes, and his muzzle, although narrower than his head, is wide and flat. He has a muscular body with long, solid legs and strong paws. Their tail is thick, long, and hangs low. The St. Weiler’s fur might vary depending on what parent he is more like; he can have a longer, silky coat or a shorter, coarse one. Their fur can be brown, tan, red, black, white, and a combination of these colors. He might get the facial marks that characterize the Rottweiler, which are tan marks above the eyes and around the muzzle.  

Eye Color Possibilities
brown St. Weiler eyes
Nose Color Possibilities
black St. Weiler nose
Coat Color Possibilities
white St. Weiler coat
red St. Weiler coat
brown St. Weiler coat
black St. Weiler coat
Coat Length
Short Medium Long
Coat Density
Sparse Normal Dense
Coat Texture
St. Weiler straight coat texture
Straight Wiry Wavy Curly Corded

St. Weiler Breed Maintenance

The St. Weiler’s grooming needs depend on each dog’s coat. For a longer coat, you will need to brush him daily to remove loose hair and avoid tangles. Also, your long-haired St. Weiler might need regular visits to the groomer for trimming. These dogs shed moderately, but it can increase during some seasons. Shorter hair dogs will require less maintenance. Weekly brushing to remove loose hair and distribute skin oils will do them good. Either way, bathe your St. Weiler just when needed, to avoid drying out his skin. You should also brush his teeth three times a week to remove tartar and avoid bad breath. Also, they need to get their ears checked and cleaned weekly to avoid infections that could occur if dirt or moisture accumulate. If his  nails get too long they have to be clipped; this will be needed once or twice a month. 

Brushes for St. Weiler
Pin Brush
Nail Clipper
Brushing Frequency
St. Weiler requires daily brushing
Daily Weekly Monthly

St. Weiler Temperament

The St. Weiler is quiet, protective, and alert. They are really intelligent dogs who like to please their owners. He will get along well with children and other animals if properly trained; interaction should begin at a young age. However, if he takes more after his Rottweiler parent, he may be aggressive toward other dogs. They also need early socialization to avoid shyness. These dogs love working and they are great at property guarding, police jobs, searching and rescuing. They are sweet and gentle dogs who enjoy spending time with their family and don’t cope well with being alone for long periods. He will bark when an intruder is in the property, but other than that, they rarely do. 

St. Weiler Activity Requirements

The St. Weiler has high endurance and energy levels, therefore he requires a lot of exercise to stay healthy. He also gains weight easily, so high activity is required to keep him healthy and in shape. Two 30 minute walks or jogs a day, plus time to run leash free and play in a park or yard will keep him happy, specially if there's a lake or pond for them to swim (they love water!). The St. Weiler also enjoys a good hike, so if you have the opportunity to take him hiking he will be thrilled to join you. These are giant dogs that live best in a house with a yard and prefer cool weather since they do not tolerate high temperatures very well. If living in an apartment, these dogs will need to go out several times a day. 

Activity Level
Low Medium High
Rec. Walk Mileage Per Week
12 miles
Minutes of Activity Per Day
60 minutes

St. Weiler Food Consumption

Cups Per Day
3.5 cups
Daily Cost
$2.75 - $3.00
Monthly Cost
$80.00 - $90.00

St. Weiler Height & Weight

6 Months
Male St. Weiler size stats at six months
Height: 13.0 inches Weight: 85.0 lbs
Female St. Weiler size stats at six months
Height: 12.0 inches Weight: 75.0 lbs
12 Months
Male St. Weiler size stats at 12 months
Height: 19.5 inches Weight: 117.5 lbs
Female St. Weiler size stats at 12 months
Height: 18.0 inches Weight: 105.0 lbs
18 Months
Male St. Weiler size stats at 18 months
Height: 26.0 inches Weight: 152.5 lbs
Female St. Weiler size stats at 18 months
Height: 24.0 inches Weight: 135.0 lbs

St. Weiler Owner Experiences

3 Months
5 People
House & Yard
Bath time
Just named him, have had him for about 4 days now. VERY smart, playful, eager to please, and is already great with 2 of my 3 kids. Working on house breaking and sit, did well with my 2 year old daughter eating from her hand. Can't wait for him to meet my 8 year old in person. Such a wonderful dog, very mellow and sweet.
1 month, 1 week ago
7 Months
2 People
dog park
Training classes
Doggy Daycare
First dog, I love him more than words. He helped make our family complete. He is currently 85 pounds at almost 7 months.
2 months, 2 weeks ago
3 Months
4 People
We’ve been restricted due to lockdown, hence there not being much activity happening. What I need to know is...if/ how do I train him at home. Regards Helga
11 months, 1 week ago
1 Year
3 People
Sadie is a rambunctious, high energy goofball when wound up. When she’s tired, she is passsd out
1 year ago
One Month
4 People
House & Yard
I am from Romania, the dog is from rotweiller mother and father saint bernard, has the statue of a Saint Bernard and the head of a rotweiller. A month and two weeks has 6 kg.
1 year, 10 months ago
7 Years
2 People
House & Yard
Walking, hanging out
This is one of the best dogs I’ve ever owned. He loves spending time with us and gets a lot of attention when we are out due to his size and beauty.
2 years, 2 months ago
Two females, Takeko and Beckett
4 Years
2 People
House & Yard
We are near Punxsutawney, PA (Groundhog Day) in a very rural setting. The girls love the barn cat, are generally quiet and extremely affectionate. One has wiry coat and never sheds, the other has a double coat and sheds a lot. Our girls are now 120 pounds each, "Everywhere I Turn There's A Wet Nose the love for and science of dogs" is an ebook about my dogs. They bark at deer and occasionally passing cars but only briefly, not enough to annoy. Get VERY excited when delivery people come, but are not aggressive with them. Many videos at
2 years, 3 months ago
Book me a walkiee?
Sketch of smiling australian shepherd