- Original breed, now extinct
- Heavy, wrinkled face and body
English Bulldog:
- Direct descendant of Old English Bulldog
- Known for its wrinkled face, short muzzle, and stocky build
American Bulldog:
- Developed in the US from Old English Bulldog stock
- Larger and more athletic than English Bulldog
- Known for its loyalty and strength
French Bulldog:
- Smaller than English and American Bulldogs
- Originated in France in late 19th century
- Known for its compact size, large ears, and friendly temperament
Alapaha Blue Blood Bulldog:
- Developed in the US in 20th century
- Known for its protective instincts and loyalty
- Athletic build and distinct blue-gray coat
Valley Bulldog:
- Created in California in 1980s
- Mix between American Bulldog and various other breeds
- Medium-sized, agile, and intelligent
Olde English Bulldogge:
- Modern recreation of the Old English Bulldog
- Developed to bring back the original appearance and temperament of the extinct breed
Catahoula Bulldog:
- Rare breed originating from Louisiana
- Known for its leopard-like coat pattern, muscular build, and alertness