- Bullmastiff Breed Standard - Official description of the breed as provided by the American Kennel Club (AKC).
- Bullmastiff Information on the Internet - Links to breeders, breed web sites, rescue, discussion lists, questions to ask a breeder, and hip dysplasia.
- Bullmastiffs Online - Breed history, care and training tips, message board, health articles, diet recommendations, and a list of breeders.
- National Bullmastiff Specialty Shows of Australia - Show results and photographs.
- What the Prudent Buyer Should Know - Questions to ask breeders, how to adopt a Bullmastiff, owner responsibilities, message board, and a referral list.
- Bullmastiffs - Pictures of three pet dogs.
- Bullmastiffs - Lots of pictures of a family's pets.
- Bullyonline.com - Home of two family pets. Loads of pictures, diaries, links, and information on health issues.
- Marley - Pictures of a dog and her family.
- Mason - Photograph gallery, news, video clips, and genealogy.
- Robully - Photographs and information about Baro, a dog in Romania. [English/Romanian]
- Tanglehill Zebidiah - Zak's photograph album, pedigree, and links.
- NetRing: World Wide Bullmastiffs - Bullmastiff websites around the world.
- Official Bullmastiff Web Ring Listing - List of websites in the ring.
- UK Bullmastiff Webring - Sites of United Kingdom breeders, exhibitors, and fanciers.
Rescues And Shelters
- American Bullmastiff Association - AKC parent breed club. Information about the club, specialties, breed rescue, list of breeders, items for sale to raise funds for rescue.
- Australian Bullmastiff League - Breed history, articles, photographs, list of breeders, and forum.
- Bullmastiff Club of New South Wales - Show pictures and results, list of upcoming events, a breeders directory, and their Hall of Fame.
- Bullmastiff Club of South Australia - News, show results, and photographs.
- Bullmastiff Club of Western Australia - Lists of shows, winners, and schedules. Breed information, code of ethics, links to other clubs, and breed standard.
- Bullmastiff Fanciers of Canada - Breed and club information, breed standard, show results, breeders listing, upcoming events and membership application.
- Dominion Bullmastiff Club New Zealand - How to join, pictures, message board, breed standard, upcoming events, books.
- French Bullmastiff and Mastiff Club - Club information, standard, shows, and links. In English and French.
- Bullmastiff Rescue Groups - NetPets listing on individual rescuers.
- Bullmastiff Rescue of Canada - Independent, nationwide volunteer organization. Adoption application and contract, photographs and profiles of available dogs, fundraising events, volunteer application, and success stories.
- Bullmastiff Rescue Resource Center - Posting pictures of available dogs from all over. Articles, adoption application, and lost and found postings.
- MoKan Bullmastiff Rescue - Pictures of available dogs and an explanation of the adoption process. St. Paul, Minnesota.
- Australasian Bullmastiff Breeders and Fanciers - Breeder lists in Australia, UK and US.
- Game Keeper - News, photographs, show results, and litter announcements. Norway.
- Garner's Kennel - Photographs, pedigrees, litter announcements, and handling information. France. [English and French].
- Mighty Mates - Photographs, kennel philosophy, and news. Germany. [English and German].
- Xantos - Show results, photographs, and pedigree of a stud dog in Hungary.
- Bohlach - Raising red and brindle coloured dogs. Kennel history, photographs, and litter announcements. Toowoomba, Queensland.
- Brinkybull - Pictures and pedigrees. New South Wales.
- Bullpower - Litter announcements and photographs. South New Wales.
- Gameguard - Breeding stock for the home and show ring with imported lines from the United Kingdom. Show news, kennel history, photographs, pedigrees, and information on their foundation dogs. Sydney, New South Wales.
- Konda Kennels - Kennel announcements, pictures, and links. Brisbane.
- Opalguard - Breed information, photographs, history, health issues, pedigrees, and books available.
- Powerbulmas Kennels - Pictures, pedigrees, news, and litter announcements. New South Wales.
- Squires - Photographs and show critiques.
- Sweetbryar - Kennel history, photographs, and litter announcements. Victoria.
- Treebrook - Photographs and show news. South Australia.
- Bumble Barns - Hobby kennel with photographs and show results. Antwerp.
- Diamond Hills Kennel - Breeding for health, temperament, and physical soundness. Photographs and links. [English and Dutch].
- AlbertaPride - Litter announcements, stud service, and pictures. Alberta.
- Black Harbour - Breeding for show and companionship. Photographs and breeding plans. Halifax, Nova Scotia.
- Brawny Kennel - Pictures, planned litters, breed characteristics, exercise requirements, and specific health problems. British Columbia.
- Bullmax - Photograph album, breed information, kennel philosophy, breeding plans, and memorials. Quebec. [English and French].
- DeFalsarel Kennel - Breeder with home-raised puppies available occasionally. Breed origin and standard, photographs, and links. Quebec. In English and French.
- Garroway Kennels - Kennel and breed information, litter announcements, care tips and photographs. Prince George, British Columbia.
- INXS Kennels - Photographs and brief pedigrees. Calgary, Alberta.
- Janhamer - Kennel history, show accomplishments, litter announcements and photographs. Greenwood, Nova Scotia.
- Kristim Kennel - Small kennel in Victoria, British Columbia. Litter announcements, upcoming litters, kennel history, and pictures.
- Moonmagic Kennel - Photographs, upcoming litters, breed description, memorials, and kennel history. New Brunswick.
- Myanka Kennels - Features kennel goals and history, photographs, pedigrees, litter announcements, frequently asked questions, and links. New Richmond, Quebec.
- RoxEdge - Kennel history, litter announcements and photographs. Sooke, British Columbia.
- Bullcastle bullmastiffi - Photographs, news, show results, judge's comments, and memorials. Finland.
- East Acton Kennel - Photographs, pedigrees, litter announcements, and show results. Available in English and Finnish.
- Brancaleone - Show news, kennel background, breed description, and litter announcements. [English and Italian].
- Buona Stella - Photograph album and breed standard.
- The Dog of Orlok Kennels - Breed information, and pictures and pedigrees of individual dogs.
- Kennel Winaty's - Photograph album, breeding schedule, and pedigrees.
- New Sensation's Kennel - Kennel history, breed standard, pictures and pedigrees of individual dogs, and show results.
- Off Mokum - Breed standard, photographs, video, list of breeders, and links.
- Blackmask - Pictures, show titles, litter announcements, books on the breed, and breed standard.
- Forte - Kennel history, photograph album, and breed and diet information.
- Castro Castalia - Kennel and breed history, litter announcements, care tips, and photographs. Madrid. [English and Spanish].
- D'Agafa L'Ase - Raising dogs from American lines. Background, show news, breeding plans, and breed standard.
- Alkestra - Kennel information, photographs, pedigrees, and links.
- Baileys Boy of Chapel - Photographs, description and pedigree of a stud dog.
- Burgau - Kennel history and photographs.
- Cathaljay - Photographs, standard, DNA profiles, and hip dysplasia information.
- Lizstick - Photographs, pedigrees, breed information, and links.
- Meitza - Pedigrees, photographs, and pedigrees of breeders' dogs and many years of show results with pedigrees of the winners. Scotland.
- Oscar, Kira and Amber - Pedigrees, photographs, breeding plans, health tips, and links.
- Aamodt's - Photographs and breeding plans. Bailey, North Carolina.
- Airis Jordan - Photographs, pedigrees, and breeding plans. California.
- Bacchus - Raising dogs for placement in show or pet homes. Show news, litter announcements, photographs, pedigrees, and diet tips. Pennsylvania.
- Barb'Eric - Raising dogs for family pets and the show ring. Pedigree, photograph album, and breeding plans. Elma, Washington.
- Bastion - Photographs of their dogs, show news, and litter announcements.
- Big Game - Pictures and pedigrees of their dogs, news, and an application for interested buyers. Santa Clarita, California.
- Big Sky Bullmastiff - Offering AKC registered puppies. Includes photographs and pricing information. Located in Saint Regis, Montana.
- Blazin - Breed standard, photographs, and links. Maryland
- Blue Sky - Pictures, litter announcements, show brags, stud service information, kennel philosophy, and history. North Hills, California.
- Bo-Wray - Kennel history, breed information, pictures, and breeding plans. Purcellville, Virginia.
- Braveheart - Raising dogs for show and companions. Pictures, information on upcoming litters, and pedigrees. Oklahoma.
- Bulhaven - Breed description, photographs, and memorials.
- Bull Run Kennel - Show pictures and pedigrees. Miami, Oklahoma.
- Bully Boy - Natural diet tips, photographs, kennel philosophy, description of their holistic approach, and a recommended reading list. New Jersey.
- CRC Kennel - Photographs, kennel background, breed history, and links.
- DOX Kennel - Photographs, kennel background, litter announcements, and information on stud service. Streator, Illinois.
- Dread Naught - Photographs, kennel philosophy and history, and breed standard. Visalia, California.
- Dream Acres Bullmastiffs - Puppies for sale to qualified families. Includes health and nutrition information, pedigrees, and photographs. Located in Booneville, Arkansas.
- ExLibris - Kennel history, litter announcements, and photographs. Takoma Park, Maryland.
- Far Isle - Photographs of their dogs and information on upcoming litters. New Jersey.
- Goldbars - Kennel history, photograph album, litter announcements, pedigrees, links, and webrings. Holyoke, Colorado.
- Heartsong - Photographs and training tips. Augusta, Georgia.
- Joy Lane - Information on breeding and breed standards, owning, care, and rescue. Article on the inheritance of brindle coat color. Maine.
- Kengin - Kennel history, litter announcements, and photographs. Pekin, Indiana.
- Khara's - Producing reds, fawns, and occaisional brindles. Photographs and show news. Eight Mile, Alabama.
- Knight - Photographs of available dogs and a brief history of the breed. Indiana.
- Kodiak - Kennel history, litter announcements, and photographs. Calhoun, Kentucky.
- Lucks Kennel and Stable - Pictures, pedigrees, and litter announcements. Virginia.
- Mystical - Offering crate and bait training. Kennel and breed histories, kennel goals, and the breed standard. Covina, California.
- Noland - Photograph gallery, kennel background, pedigrees, breeding plans, and stud service information. Michigan.
- Praetorian - Photographs, history of the breed and the breeder, recommended books list, tips and tricks for new owners, litter announcementss, pedigrees, and stud service information. California.
- Quailhaven - Raising dogs for show. Breeding plans, photographs, and show brags. Palmdale, California.
- Raging Bulls of North Carolina - Breed history, photographs, pedigrees, and breeding plans. Charlotte.
- Sinclairs - Photographs, news, and links. Maine.
- Stone Ridge - Breed standard, pedigrees, and photographs. Crete, Illinois.
- Tartan - Photographs, pedigrees, and litter announcements. McHenry, Illinois.
- TNT - Raising dogs for show and companionship. Photographs, show news, and breeding plans. Michigan.
- Tru Grit - Breeder's history and photographs. Wilson, North Carolina.
- Valtris Estates - Breed description, behavior training tips, original articles, pictures, how to train a puppy. Stoughton, Wisconsin.
- Xtreme - Features kennel history, photographs, and litter announcements. Texas.
- Yesmars - Breed history and characteristics, litter announcements, and photographs. Phoenix, Arizona.