Knighterrant Mastiffs

Art by David Swift

​​We live in rural Ottawa on 27 acres. We currently have 10 Mastiffs ranging from

14 months old to 10 years old.

Please visit our pages to learn more about us. 
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About Us

Knighterrant Mastiffs

Dave and Joanne Swift

2661 Stagecoach Road, Osgoode, Ontario, Canada, K0A 2W0 
kmastiff@knighterrantmastiffs.com 

613-821-6279

Art by David Swift

Welcome to our new website.

​​We started with our first Mastiff, as a pet, in 1988 and have never looked back. We fell in love with Tiny who turned out to be the best in her litter, a true gentle giant. So we showed her to her championship, had her hips and eyes and hips certified and bred her in 1992. We have been showing, breeding and placing Mastiff ever since.


We have had 24 litters in the past 25 years from this line and breeding to the following Champions:  Ch. Grenier Hall  Jedadiah, Ch. Acorn Hills Silent Knight,  Ch. Baskerville's Magnus Augustus, Ch. Baskerville's Prince Lothar, Ch. Knighterrant's Heavy Duty, Ch. Knighterrant Sherman the Tank. All our breeding stock is tested for OFA hips, elbows, eyes, and PennHip.  In addition we belong to the CKC, MCOA and OKC so do further testing
as required. Only the clear and best dogs are bred.

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Gentle Giants

Copyright of Knighterrant Mastiffs 2017

We attend the local shows when we do not have puppies due or on the ground. We will post the shows we plan to attend on our Show News page as well as our wins.



We have puppies once or twice a year. Our waiting list is quite long, but it is often the newest people who get the puppies. Please contact us for details on how to go on our waiting list. The details of our next planned litter are on our Breeding Plan Page.

We offer stud service to approved bitches.

English Mastiffs of Distinction