Brightest Dogs
Understanding of New Commands: Fewer than 5 repetitions.
Obey First Command: 95% of the time or better.
Border Collie
Poodle
German Shepherd
Golden Retriever
Doberman Pinscher
Shetland Sheepdog
Labrador Retriever
Papillon
Rottweiler
Australian Cattle Dog
Excellent Working Dogs
Understanding of New Commands: 5 to 15 repetitions.
Obey First Command: 85% of the time or better.
Pembroke Welsh Corgi
Miniature Schnauzer
English Springer Spaniel
Belgian Shepherd Dog (Tervuren)
Schipperke
Belgian Sheepdog
Collie
Keeshond
German Shorthaired Pointer
Flat-Coated Retriever
English Cocker Spaniel
Standard Schnauzer
Brittany
Cocker Spaniel
Weimaraner
Belgian Malinois
Bernese Mountain Dog
Pomeranian
Irish Water Spaniel
Vizsla
Cardigan Welsh Corgi
Above Average Working Dogs
Understanding of New Commands: 15 to 25 repetitions.
Obey First Command: 70% of the time or better.
Chesapeake Bay Retriever
Puli
Yorkshire Terrier
Giant Schnauzer
Airedale Terrier
Bouvier des Flandres
Border Terrier
Briard
Welsh Springer Spaniel
Manchester Terrier
Samoyed
Field Spaniel
Newfoundland
Australian Terrier
American Staffordshire Terrier
Gordon Setter
Bearded Collie
Cairn Terrier
Kerry Blue Terrier
Irish Setter
Norwegian Elkhound
Affenpinscher
Australian Silky Terrier
Miniature Pinscher
English Setter
Pharaoh Hound
Clumber Spaniel
Norwich Terrier
Dalmatian
Average Working/Obedience Intelligence
Understanding of New Commands: 25 to 40 repetitions.
Obey First Command: 50% of the time or better.
Soft-coated Wheaten Terrier
Bedlington Terrier
Fox Terrier (Smooth)
Curly Coated Retriever
Irish Wolfhound
Kuvasz
Australian Shepherd
Saluki
Finnish Spitz
Pointer
Cavalier King Charles Spaniel
German Wirehaired Pointer
Black and Tan Coonhound
American Water Spaniel
Siberian Husky
Bichon Frise
King Charles Spaniel
Tibetan Spaniel
English Foxhound
Otterhound
American Foxhound
Greyhound
Wirehaired Pointing Griffon
West Highland White Terrier
Havanese
Scottish Deerhound
Boxer
Great Dane
Dachshund
Shiba Inu
Staffordshire Bull Terrier
Alaskan Malamute
Whippet
Chinese Shar Pei
Wire Fox Terrier
Rhodesian Ridgeback
Ibizan Hound
Welsh Terrier
Irish Terrier
Boston Terrier
Akita
Fair Working/Obedience Intelligence
Understanding of New Commands: 40 to 80 repetitions.
Obey First Command: 30% of the time or better.
Skye Terrier
Norfolk Terrier
Sealyham Terrier
Pug
French Bulldog
Griffon Bruxellois
Maltese
Italian Greyhound
Chinese Crested
Dandie Dinmont Terrier
Petit Basset Griffon Vendéen
Tibetan Terrier
Japanese Chin
Lakeland Terrier
Old English Sheepdog
Great Pyrenees
Scottish Terrier
Saint Bernard
Bull Terrier
Chihuahua
Lhasa Apso
Bullmastiff
Lowest Degree of Working/Obedience Intelligence
Understanding of New Commands: 80 to 100 repetitions or more.
Obey First Command: 25% of the time or worse.
Shih Tzu
Basset Hound
Mastiff
Beagle
Pekingese
Bloodhound
Borzoi
Chow Chow
Bulldog
Basenji
Afghan Hound
https://en.m.wikipedia.org/wiki/The_Intelligence_of_Dogs