Here are some dog breeds that include the letter “x” in their names:
1. Boxer
2. Mexican Hairless Dog (Xoloitzcuintli)
3. Doxiepoo (Dachshund-Poodle mix)
4. Fox Terrier
5. American Foxhound
6. Border Collie Mix (any mixed breed containing “mix” in the name)
These breeds either contain “x” in their standard names or in commonly used variations.