Magyar agar
Majestic tree hound
Maltese
Manchester Terrier
Maremma sheepdog
Mastiff
(english mastiff) (old english mastiff)
Mastiff
Mi-ki
Middle asian owtcharka
Miniature Bull Terrier
Miniature Littlefield Sheepdog
Miniature Pinscher
Miniature poodle
Miniature schnauzer
Miniature Schnauzer
Mongrel
Moscow longhaired toy terrier
Mountain cur
Mountain view cur
Mudi
Munsterlanders