* Different organizations have different classifications: The American Kennel Club (AKC), the United Kennel Club (UKC), and the Fédération Cynologique Internationale (FCI) all have their own breed classifications.
* Breeds can be reclassified: Over time, breeds can be moved between groups, so the number of terriers can fluctuate.
* New breeds are recognized: New breeds are constantly being developed and recognized.
However, you can get a general idea of the number of terriers recognized by major organizations:
* AKC: The AKC currently recognizes 30 terrier breeds, divided into four subcategories:
* Sporting Terriers: 4 breeds
* Working Terriers: 2 breeds
* Terriers: 20 breeds
* Toy Terriers: 4 breeds
* UKC: The UKC currently recognizes 33 terrier breeds in their Terrier Group.
* FCI: The FCI recognizes 33 terrier breeds in their Terrier Group, divided into 3 subcategories:
* Terriers: 12 breeds
* Small Terriers: 15 breeds
* Big Terriers: 6 breeds
So, while the exact number can vary, you can safely say there are around 30-35 terrier breeds recognized by major canine organizations worldwide.