Last Updated: Nov 22, 2022
Quick Links: Table of Contents
- Are Mastiffs Aggressive Towards Strangers?
- Are Mastiffs Aggressive Towards their Owners?
- Are Mastiffs Aggressive Towards other Dogs?
- Are Mastiffs Afraid of Strangers?
- Are Mastiffs Afraid of Other Dogs?
- Do Mastiffs Have Non-Social Fears?
- Do Mastiffs Get Along Well With Other Dogs?
- Are Mastiffs Easy to Train?
- Do Mastiffs Get Along Well with Cats? Do They Get Along Well with Other Pets?
- Do Mastiffs Like Attention? Are they Clingy or Aloof?
- Do Mastiffs have Separation Anxiety? Do They Like to be Left Alone?
- Are Mastiffs Touch Sensitive? Do They Like to be Groomed?
- Are Mastiffs Hyper? Are they Highly Excitable?
- Are Mastiffs Playful? What is the Energy Level of Mastiffs
- Conclusion on Mastiff Temperament
Introduction to the Temperament of the Mastiff
The are many descriptions of the temperament of the Mastiff out there. However, most of these descriptions are difficult to verify or prove. They are based on mere speculations.
In this article, we will provide a factual description of the temperament of the Mastiff based on solid scientific research. This will give you a better understanding of what you can expect from the Mastiff breed.
We obtained our description of the temperament of Mastiff by analyzing raw scientific data from The Canine Behavioral Assessment & Research Questionnaire (C-BARQ) database.
The C-BARQ dog temperament standard was developed by researchers from the University of Pennsylvania. It is considered the gold standard for measuring the behavior of dogs.
Over the years, the C-BARQ study has collected data on the temperament of thousands of dogs of different breeds including the Mastiff.
The C-BARQ study obtains its data by asking dog owners to score the behavior of their dogs on different behavior patterns.
The idea behind the C-BARQ study is that if it collects thousands of scores from thousands of dog owners on different aspects of dog behavior, a clear pattern will emerge on the temperament of different dog breeds.
The C-BARQ questionnaire measures 14 behavior aspects of dogs:
- Aggression towards stranger
- Aggression towards its owner
- Aggression towards other dogs
- How well they get along with other dogs
- Fear of strangers
- Fear of new things (new objects, unfamiliar loud sounds, etc)
- Fear of other dogs
- Separation anxiety
- Clinginess
- Trainability/ Stubbornness
- Prey drive
- Excitability
- Touch sensitivity
- Energy level
In this article, we will discuss the score of the Mastiff for each of these 14 characteristics. This will let you know the real temperament of the Mastiff.
The summary table below shows the score of the Mastiff for the different behavioral characteristics.
High percentage scores close to 100 are bad. Low percentage scores close to 0 are good.
Behavior | Score |
---|---|
Attachment Attention Seeking | 60.9 percent |
Owner Directed Aggression | 5.6 percent |
Stranger Directed Fear | 42.1 percent |
Nonsocial Fear | 39.7 percent |
Stranger Directed Aggression | 33.1 percent |
Stubbornness | 31.4 percent |
Dog Directed Aggression | 29.9 percent |
Energy Level | 29.0 percent |
Excitability | 28.9 percent |
Separation Related Behavior | 28.6 percent |
Dog Directed Fear | 26.3 percent |
Dog Rivalry | 24.9 percent |
Touch Sensitivity | 19.1 percent |
Prey Drive | 18.2 percent |
Note that with proper training, you can better your Mastiff`s temperament. To learn how to properly train your Mastiff, I highly recommend that you go through Dr. Ian Dunbar`s online dog training classes, which you can find here.
I learned most of the things that I know about training dogs by reading Dr. Dunbar`s books and watching his training videos. Dr. Dunbar`s dog training methods are for people expecting to own a puppy soon, new dog owners, and experienced dog owners.
Another helpful online dog training class that I recommend is this one. The class will teach you how to properly train your Mastiff.
See also our complete ranking of dog breeds from the `best` to the `worst` based on temperament.
Are Mastiffs Aggressive Towards Strangers?
Dog breeds that are aggressive to strangers show hostile responses to strangers approaching or invading the dog`s or the dog owner`s personal space, territory, or home range.
Stranger-aggressive dog breeds are quick to show aggression to unfamiliar people.
Typical signs of moderate aggression in dogs include barking, growling, and baring of teeth. More serious display of aggression generally includes snapping, lunging, biting, or attempting to bite.
Mastiffs are somewhat aggressive towards strangers.
This is because the Mastiff ranks average for aggression towards strangers.
The Mastiff ranks number 56 out of 124 dog breeds for aggression towards strangers.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a stranger-directed-aggression score of 33.1 %.
Other dog breeds that are somewhat aggressive towards strangers just like the Mastiff are listed in the table below
Stranger-Directed-Aggression Rank | Breed | Stranger-Directed-Aggression Score |
---|---|---|
53 | Border Collie | 35.2 % |
54 | Great Dane | 34.8 % |
55 | Akita | 33.6 % |
56 | Mastiff (English) | 33.1 % |
57 | Beagle | 32.4 % |
58 | Italian Greyhound | 32.4 % |
59 | Treeing Walker Coonhound | 32.3 % |
The dog breeds that are most aggressive towards strangers are the:
The dog breeds that are least aggressive towards strangers are the:
Usually, small dog breeds display aggression not because they are mean but because they are afraid and feel insecure due to their small size.
![](https://petcalculator.com/wp-content/uploads/images/mastiff-temperament.jpg)
Are Mastiffs Aggressive Towards their Owners?
Due to human effort over the course of many centuries, the dog has become a very domestic animal. Dogs have learned to live well with humans. As a result, dogs respect and love their owners. Nevertheless, some dog breeds are less respectful to their owners than some other dog breeds.
Owner-aggressive dog breeds show threatening or hostile responses to their owner or other members of the household when challenged, manhandled, stared at, stepped over, or when approached while in possession of food, objects, or toys.
A dog that is owner-aggressive shows its aggression by barking, growling, and baring of teeth. In extreme cases, these dogs can snap, lunge, bite, or attempt to bite their owners.
Mastiffs are not aggressive towards their owners.
This is because the Mastiff ranks very low for aggression towards its owner.
The Mastiff ranks number 114 out of 124 dog breeds for aggression towards their owners.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has an owner-directed-aggression score of 5.6 %.
Other dog breeds that are not owner-aggressive just like the Mastiff are listed in the table below
Owner-Directed-Aggression Rank | Breed | Owner-Directed-Aggression Score |
---|---|---|
111 | Great Dane | 6.1 % |
112 | Border Terrier | 6.0 % |
113 | American Pit Bull Terrier | 5.7 % |
114 | Mastiff (English) | 5.6 % |
115 | German Wirehaired Pointer | 5.4 % |
116 | Portuguese Water Dog | 5.0 % |
117 | Bouvier des Flandres | 4.9 % |
The dog breeds that show the most aggression towards their owners are the:
The dog breeds that are least aggressive towards their owners are the:
Usually, small dog breeds display aggression not because they are mean but because they are afraid and feel insecure due to their small size.
Are Mastiffs Aggressive Towards other Dogs?
Dogs that are aggressive towards other dogs will direct aggressive threats or actions toward unknown or unfamiliar dogs.
A dog-aggressive dog will threaten or show hostile responses when approached by unfamiliar dogs
A dog that is dog-aggressive shows its aggression by barking, growling, and baring of teeth. In extreme cases, these dogs can snap, lunge, bite, or attempt to bite other dogs.
Mastiffs are a little bit aggressive towards other dogs.
This is because the Mastiff ranks low for aggression towards other dogs.
The Mastiff ranks number 91 out of 124 dog breeds for aggression towards other dogs.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a dog-directed aggression score of 29.9 %.
Other dog breeds that are a little bit dog-aggressive just like the Mastiff are listed in the table below
Dog-Directed-Aggression Rank | Breed | Dog-Directed-Aggression Score |
---|---|---|
88 | Rhodesian Ridgeback | 32.7 % |
89 | Siberian Husky | 31.8 % |
90 | Samoyed | 30.4 % |
91 | Mastiff (English) | 29.9 % |
92 | Ibizan Hound | 29.4 % |
93 | Scottish Terrier | 29.3 % |
94 | Portuguese Water Dog | 29.2 % |
The dog breeds that show the most aggression towards other dogs are the:
The dog breeds that are least aggressive towards other dogs are the:
Usually, small dog breeds display aggression not because they are mean but because they are afraid and feel insecure due to their small size.
![](https://petcalculator.com/wp-content/uploads/images/mastiff-good-family-dog.jpg)
Are Mastiffs Afraid of Strangers?
Some dogs breeds tend to be fearful of strangers.
Dogs that are fearful of strangers will avoid strangers. These dogs will crouch, cringe, or tremble when approached by strangers.
Extreme fear in dogs is characterized by serious attempts to escape or hide from the feared stranger.
Mastiffs are quite a bit fearful of strangers.
This is because the Mastiff ranks high for fear of strangers.
The Mastiff ranks number 26 out of 124 dog breeds for fear of strangers.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a stranger-directed-fear score of 42.1 %.
Other dog breeds that are quite a bit stranger-fearful just like the Mastiff are listed in the table below
Stranger-Directed-Fear Rank | Breed | Stranger-Directed-Fear Score |
---|---|---|
23 | Afghan Hound | 43.1 % |
24 | Pekingese | 42.7 % |
25 | Alaskan Husky | 42.6 % |
26 | Mastiff (English) | 42.1 % |
27 | Cocker Spaniel (English) | 42.1 % |
28 | Cocker Spaniel (American) | 41.9 % |
29 | Papillon | 40.9 % |
The dog breeds that show the most fear of strangers are the:
The dog breeds that are least fearful of strangers are the:
Are Mastiffs Afraid of Other Dogs?
Some dogs breeds tend to show fear when an unfamiliar dog approaches them.
A dog that is fearful of other dogs will try to avoid meeting other dogs.
Mastiffs are a little bit fearful of other dogs.
This is because the Mastiff ranks low for fear of other dogs.
The Mastiff ranks number 88 out of 124 dog breeds for fear of other dogs.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a dog-directed-fear score of 26.3 %.
Other dog breeds that are a little bit other-dog-fearful just like the Mastiff are listed in the table below
Dog-Directed-Fear Rank | Breed | Dog-Directed-Fear Score |
---|---|---|
85 | German Shorthaired Pointer | 26.6 % |
86 | Boston Terrier | 26.5 % |
87 | Rhodesian Ridgeback | 26.4 % |
88 | Mastiff (English) | 26.3 % |
89 | Portuguese Water Dog | 26.3 % |
90 | Bouvier des Flandres | 25.7 % |
91 | Pit Bull | 25.2 % |
The dog breeds that are most fearful of other dogs are the:
The dog breeds that are least fearful of other dogs are the:
![](https://petcalculator.com/wp-content/uploads/images/is-mastiff-good-pet.jpg)
Do Mastiffs Have Non-Social Fears?
Dogs that are fearful of sudden or loud noises, traffic, and unfamiliar objects and situations are said to exhibit nonsocial fear.
Mastiffs are quite a bit fearful of unfamiliar sounds, situations, and objects.
This is because the Mastiff ranks high for non-social fear.
The Mastiff ranks number 41 out of 124 dog breeds for being fearful of unfamiliar things and situations.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a nonsocial-fear score of 39.7 %.
Other dog breeds that are quite a bit nonsocial-fearful just like the Mastiff are listed in the table below
Nonsocial-Fear Rank | Breed | Nonsocial-Fear Score |
---|---|---|
38 | Australian Kelpie | 41.2 % |
39 | Treeing Walker Coonhound | 40.9 % |
40 | Fox Terrier (Wire/Wire-haired) | 40.0 % |
41 | Mastiff (English) | 39.7 % |
42 | Tibetan Terrier | 38.8 % |
43 | Pit Bull | 38.6 % |
44 | Jack Russell Terrier | 37.5 % |
The dog breeds that are most fearful of unfamiliar situations and objects are the:
The dog breeds that are least fearful of unfamiliar situations and objects are the:
Do Mastiffs Get Along Well With Other Dogs?
Some dog breeds display high dog rivalry. These dog breeds will threaten or act hostile to other familiar dogs in the same household.
These dog breeds will compete with other dogs. Also, these dog breeds do not get along well with other dogs.
Mastiffs are not competitive when dealing with other dogs.
This is because the Mastiff ranks very low on dog rivalry.
The Mastiff ranks number 100 out of 124 dog breeds for displaying dog rivalry when dealing with familiar dogs.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a dog-rivalry score of 24.9 %.
Other dog breeds that are not competition-driven just like the Mastiff are listed in the table below
Dog-Rivalry Rank | Breed | Dog-Rivalry Score |
---|---|---|
97 | Collie | 26.0 % |
98 | German Shorthaired Pointer | 25.4 % |
99 | Rhodesian Ridgeback | 25.0 % |
100 | Mastiff (English) | 24.9 % |
101 | Bichon Frise | 24.6 % |
102 | Poodle (Standard) | 24.6 % |
103 | Portuguese Water Dog | 23.3 % |
The dog breeds that do not get along well with other dogs are the:
The dog breeds that get along well with other dogs are the:
See our complete ranking of dog breeds based on how well they get along with other dog breeds.
![](https://petcalculator.com/wp-content/uploads/images/are-mastiff-aggressive.jpg)
Are Mastiffs Easy to Train?
Dogs have high trainability have the willingness to listen to their owner. These dogs are not stubborn. These dogs obey simple commands, and they learn very quickly.
Highly trainable dogs excel at fetching objects. They also respond positively to correction and ignore distraction.
Mastiffs are somewhat easy to train.
This is because the Mastiff ranks average for trainability.
The Mastiff ranks number 58 out of 124 dog breeds for easiness to train.
This information is based on what 169 Mastiff owners reported on the trainability of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a trainability score of 68.6 %.
Other dog breeds that are somewhat easy to train just like the Mastiff are listed in the table below
Trainability Rank | Breed | Trainability Score |
---|---|---|
55 | Gordon Setter | 70.5 % |
56 | Irish Setter | 69.5 % |
57 | Cocker Spaniel (English) | 68.6 % |
58 | Mastiff (English) | 68.6 % |
59 | Pit Bull | 68.0 % |
60 | Soft Coated Wheaten Terrier | 67.9 % |
61 | Cocker Spaniel (American) | 67.0 % |
The dog breeds that are most easy to train are the:
The dog breeds that are difficult to train are the:
Learn more about how intelligent the Mastiff is and how the intelligence of the Mastiff affects its trainability in this article on how smart the Mastiff is.
Do Mastiffs Get Along Well with Cats? Do They Get Along Well with Other Pets?
Dog breeds that have high chase-drive will run after (chase) cats, birds, and/or other small animals, given the opportunity.
Mastiffs are not into chasing after other smaller pets like cats, squirrels, chickens, and birds.
This is because the Mastiff ranks very low for small-pet-chasing.
The Mastiff ranks number 119 out of 124 dog breeds for chasing after smaller pets.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a chasing score of 18.2 %.
Other dog breeds that are not into chasing after smaller pets just like the Mastiff are listed in the table below
Chasing Rank | Breed | Chasing Score |
---|---|---|
116 | Anatolian Shepherd | 19.8 % |
117 | Black and Tan Coonhound | 19.2 % |
118 | Keeshond | 18.5 % |
119 | Mastiff (English) | 18.2 % |
120 | Great Pyrenees | 14.3 % |
121 | Bernese Mountain Dog | 11.3 % |
122 | Shih Tzu | 10.7 % |
The dog breeds that like chasing after cats and other smaller pets are the:
The dog breeds that will not chase after cats and other smaller pets are the:
See our complete ranking of dog breeds based on their prey drive.
![](https://petcalculator.com/wp-content/uploads/images/what-is-good-about-mastiffs.jpg)
Do Mastiffs Like Attention? Are they Clingy or Aloof?
Some dog breeds like to stay close to their owners all the time. These dogs like attention, and they like to receive the affection of their owners.
These dogs get jealous when their owners give attention to other dogs or other people instead of them.
Dogs with these traits are described as attachment/attention-seeking.
Mastiffs are quite a bit attachment/attention-seeking.
This is because the Mastiff ranks high for attachment/attention-seeking behavior.
The Mastiff ranks number 46 out of 124 dog breeds for attachment/attention-seeking behavior.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has an attachment/attention-seeking score of 60.9 %.
Other dog breeds that are quite a bit attachment/attention-seeking just like the Mastiff are listed in the table below
Attachment-Attention-Seeking Rank | Breed | Attachment-Attention-Seeking Score |
---|---|---|
43 | Cocker Spaniel (American) | 61.6 % |
44 | Havanese | 61.6 % |
45 | Chinese Shar-Pei | 61.5 % |
46 | Mastiff (English) | 60.9 % |
47 | West Highland White Terrier | 60.6 % |
48 | Weimaraner | 60.1 % |
49 | Pit Bull | 57.0 % |
The dog breeds that are always seeking the attention of their owners are the:
The dog breeds that are aloof are the:
See our complete ranking of dog breeds based on their clinginess.
Do Mastiffs have Separation Anxiety? Do They Like to be Left Alone?
Dog breeds that have separation anxiety do not like to be left alone.
These dog breeds tend to bark and destroy things when separated from their owners.
They become restless or lose their appetite when left alone.
Mastiffs are a little bit prone to developing separation anxiety.
This is because the Mastiff ranks low for separation anxiety relative to other dog breeds.
The Mastiff ranks number 86 out of 124 dog breeds for separation anxiety.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a separation anxiety score of 28.6 %.
Other dog breeds that are a little bit prone to develop separation anxiety just like the Mastiff are listed in the table below
Separation-Related-Behavior Rank | Breed | Separation-Related-Behavior Score |
---|---|---|
83 | Doberman Pinscher | 29.4 % |
84 | Shiba Inu | 29.1 % |
85 | Shetland Sheepdog | 29.0 % |
86 | Mastiff (English) | 28.6 % |
87 | Siberian Husky | 28.5 % |
88 | Border Terrier | 27.3 % |
89 | Chinook | 26.9 % |
The dog breeds that are most prone to develop separation anxiety are listed below. These dog breeds do not like to be left alone. These dog breeds are the:
- Treeing Walker Coonhound
- Fox Terrier (Smooth)
- Chinese Crested
- Miniature Pinscher
- Australian Silky Terrier
The dog breeds that are least prone to develop separation anxiety are the:
See our complete ranking of dog breeds based on their tendency to develop separation anxiety.
![](https://petcalculator.com/wp-content/uploads/images/what-is-bad-about-mastiffs.jpg)
Are Mastiffs Touch Sensitive? Do They Like to be Groomed?
Dogs that are touch-sensitive are fearful of `painful` procedures such as bathing, grooming, nail clipping, and veterinary examinations.
These dogs do not like going through these `painful` procedures, and they will react to show they do not like the procedure.
Mastiffs are not touch-sensitive.
This is because the Mastiff ranks very low for touch sensitivity.
The Mastiff ranks number 101 out of 124 dog breeds for touch sensitivity.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has a touch-sensitivity score of 19.1 %.
Other dog breeds that are not touch-sensitive just like the Mastiff are listed in the table below
Touch-Sensitivity Rank | Breed | Touch-Sensitivity Score |
---|---|---|
98 | Vizsla | 19.9 % |
99 | Doberman Pinscher | 19.4 % |
100 | Anatolian Shepherd | 19.3 % |
101 | Mastiff (English) | 19.1 % |
102 | Belgian Sheepdog | 19.0 % |
103 | Bouvier des Flandres | 18.9 % |
104 | Boston Terrier | 18.5 % |
The dog breeds that are most touch-sensitive are the:
The dog breeds that are least touch-sensitive are the:
See our complete ranking of dog breeds based on their sensitivity to touch.
Are Mastiffs Hyper? Are they Highly Excitable?
Excitable dog or hyper dog breeds display strong reactions to potentially exciting or arousing events, such as:
- going for walks
- car trips
- sound of the doorbell
- arrival of visitors, and
- the owner arriving home
Highly excitable dog breeds have difficulty settling down after arousal.
Mastiffs are not hyper (excitable).
This is because the Mastiff ranks very low for excitability.
The Mastiff ranks number 104 out of 124 dog breeds for excitability.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has an excitability score of 28.9 %.
Other dog breeds that are not excitable just like the Mastiff are listed in the table below
Excitability Rank | Breed | Excitability Score |
---|---|---|
101 | Basenji | 31.3 % |
102 | Shiba Inu | 29.5 % |
103 | Bull Terrier | 29.1 % |
104 | Mastiff (English) | 28.9 % |
105 | Akita | 27.8 % |
106 | Lhasa Apso | 27.4 % |
107 | Siberian Husky | 26.3 % |
The dog breeds that are most hyper (excitable) are the:
- Australian Silky Terrier
- Fox Terrier (Smooth)
- American Eskimo Dog
- Parson Russell Terrier
- Miniature Schnauzer
The dog breeds that are least hyper (excitable) are the:
See our complete ranking of dog breeds based on how hyper they are.
![](https://petcalculator.com/wp-content/uploads/images/should-i-get-a-mastiff.jpg)
Are Mastiffs Playful? What is the Energy Level of Mastiffs
Energetic dog breeds are very playful dog breeds. These are the dog breeds that do not get tired easily.
Mastiffs are not energetic.
This is because the Mastiff ranks very low for energy level.
The Mastiff ranks number 111 out of 124 dog breeds for energy level.
This information is based on what 169 Mastiff owners reported on the temperament of their Mastiff in a research survey.
Based on our further analysis of the survey, we found that the Mastiff has an energy-level score of 29.0 %.
Other dog breeds that are not energetic just like the Mastiff are listed in the table below
Energy-Level Rank | Breed | Energy-Level Score |
---|---|---|
108 | Tibetan Terrier | 30.0 % |
109 | Irish Wolfhound | 30.0 % |
110 | Basset Hound | 29.2 % |
111 | Mastiff (English) | 29.0 % |
112 | Chinook | 28.0 % |
113 | Newfoundland | 27.6 % |
114 | Whippet | 26.2 % |
The dog breeds that are most playful and most energetic are the:
The dog breeds that are laziest are the:
See our complete ranking of dog breeds from the most energetic to the least energetic.
Conclusion on Mastiff Temperament
The temperament of your Mastiff comes from a combination of its genetics and what environment your Mastiff is exposed to.
You cannot change your Mastiff`s gene but you can change the things you expose your Mastiff to.
Exposing your Mastiff to dog training sessions early in its life can help you mold the temperament of your Mastiff to what you desire.
Again, with proper training, you can better your Mastiff`s temperament. To learn how to properly train a dog, I highly recommend Dr. Ian Dunbar`s online dog training classes, which you can find here.
I learned most of the things I know about training dogs by reading Dr. Dunbar`s books and watching his training videos. Dr. Dunbar`s dog training methods are for people expecting to own a puppy soon, new dog owners, and experienced dog owners.
Another helpful online dog training class that I recommend is this one. The class will teach you how to properly train your Mastiff.
If you think the Mastiff is the right dog breed for you, see our article on how much Mastiffs cost and Mastiff puppy buying guide.
Also, see our list of reputable Mastiff breeders in the United States and the prices of their Mastiff puppies.