Moscow Watchdog
- BREED GROUP:Working
- WEIGHT:100 to 150 lbs
- HEIGHT:25 to 27 inches
- COLOR(S):Red and white.
Mountain Cur
- BREED GROUP:Working
- WEIGHT:40 to 60 lbs
- HEIGHT:16 to 26 inches
- COLOR(S):Brown, blue, red, yellow, brindle, black with tan or black with brindle points.
Mudi
- BREED GROUP:Working
- WEIGHT:18 to 29 lbs
- HEIGHT:14 to 20 inches
- COLOR(S):Black, brown, red, white, yellow, and gray. Some may have merle markings.
Munsterlander
- BREED GROUP:Working
- WEIGHT:25 to 35 lbs
- HEIGHT:23 to 26 inches
- COLOR(S):Brown, brown and white, or dark red and white.
Neapolitan Mastiff
- BREED GROUP:Working
- WEIGHT:165 lbs
- HEIGHT:24 to 30 inches
- COLOR(S):Black, blue or chocolate.
New Guinea Singing Dog
- BREED GROUP:Working
- WEIGHT:25 lbs
- HEIGHT:17 inches
- COLOR(S):Golden red, or black and tan with white markings.
Newfoundland
- BREED GROUP:Working
- WEIGHT:100 to 150 lbs
- HEIGHT:26 to 28 inches
- COLOR(S):Black, gray, or brown. May have white markings.
Norfolk Terrier
- BREED GROUP:Terrier
- WEIGHT:11 to 12 lbs
- HEIGHT:9 to 10 inches
- COLOR(S):Red, wheaten, black and tan, or grizzle.
Norwegian Buhund
- BREED GROUP:Miscellaneous Class
- WEIGHT:26 to 40 lbs
- HEIGHT:16 to 19 inches
- COLOR(S):Wheaten, or black.
Norwegian Elkhound
- BREED GROUP:Hound
- WEIGHT:48 to 55 lbs
- HEIGHT:20 to 21 inches
- COLOR(S):Gray coat, silver under coat with black muzzle.
Norwegian Lundehund
- BREED GROUP:Hound
- WEIGHT:13.5 to 15.5 lbs
- HEIGHT:12 to 15 inches
- COLOR(S):White, fawn, gray, black, yellow, white or sable.
Norwich Terrier
- BREED GROUP:Terrier
- WEIGHT:12 lbs
- HEIGHT:10 inches
- COLOR(S):Red, wheaten, black and tan, or grizzle.
Nova Scotia Duck Tolling Retriever
- BREED GROUP:Sporting
- WEIGHT:37 to 51 lbs
- HEIGHT:17 to 21 inches
- COLOR(S):Red and orange. May have white markings.
Old English Sheepdog
- BREED GROUP:Herding
- WEIGHT:60 to 90 lbs
- HEIGHT:21 to 22 inches
- COLOR(S):Gray, grizzle, blue, or blue merle with or without white markings.
Otterhound
- BREED GROUP:Hound
- WEIGHT:80 to 115 lbs
- HEIGHT:24 to 27 inches
- COLOR(S):All colors.
Papillon
- BREED GROUP:Toy
- WEIGHT:9 to 10 lbs
- HEIGHT:8 to 11 inches
- COLOR(S):White with patches of brown, red, orange, black, and fawn.
Papoo
- BREED GROUP:Toy
- WEIGHT:3 to 14 lbs
- HEIGHT:8 to 12 inches
- COLOR(S):White with markings of any color.
Parson Russell Terrier
- BREED GROUP:Terrier
- WEIGHT:13 to 17 lbs
- HEIGHT:13 to 14 inches
- COLOR(S):White, white with black or white with tan markings.