The FCI standard uses three weight classes: under 6.8 kg (15 lb), 6.8-9 kg (15-20 lb) and 9-11.35 kg (20-25 lb). UKC gives 15-25 lb overall. Hill's gives 15-25 lb for males and 10-20 lb for females.
The coat is short, fine and glossy, lying close over a compact, square-built body. The head is short and square with large, round, widely set eyes and upright ears, and the whole dog gives an impression of neat balance with a sporty, well-dressed look thanks to its crisp white markings.347
Coloursbrindle with whiteseal with whiteblack with white34
Personality what they are like
A cheerful, lively little dog with a polite streak that earned it the nickname 'American Gentleman'. Bostons are sociable and playful, usually get along with other pets and tend to be patient with children. They are clever and alert but not known as big barkers, generally only speaking up when there is a reason to.7524
Daily activity how busy a day looks
Moderate. Hill's suggests about 20-40 minutes of activity a day and The Royal Kennel Club up to an hour. Several short walks and games of fetch suit the breed better than long, strenuous outings.56
Grooming and care the hands-on bits
Low maintenance. A weekly brush or rub-down with a grooming mitt keeps the short coat shiny, with an occasional bath. The coat does shed. Regular nail trims and tooth brushing are part of normal care.65
Home where they are happiest
Adapts well to flats and apartments; a small to medium garden is plenty. With its short coat and short face, a Boston is best kept as an indoor companion and exercised in the cooler parts of hot days.62
Food basics what goes in the bowl
A complete, good-quality dog food portioned for a small breed and its activity level. Some Bostons are fussy eaters, so once a food that suits the dog is found, sticking with it keeps feeding simple.5
Company who they like around
A people-focused companion that enjoys being part of family life and generally mixes well with other pets and with children.53
The story where it all began
The breed traces back to around 1870, when Robert C. Hooper of Boston bought a bull-and-terrier type dog called Judge from William O'Brien. Judge, who weighed about 32 lb, was mated to Gyp (also recorded as Kate), a blocky-headed bulldog-type female of about 20 lb owned by Edward Burnett of Southboro, Massachusetts, and the AKC regards Hooper's Judge as the forefather of nearly all modern Boston Terriers. Early dogs, sometimes called Old Boston Bulldogs, could weigh up to 44 lb, and breeders gradually brought the size down. The UKC notes that bull-and-terrier types, bulldogs and French Bulldogs are among the breeds thought to have played a part. Fanciers founded the Boston Terrier Club in 1891, and the AKC accepted the breed in 1893, making it one of the few breeds developed in the United States. Colour and markings mattered little at first, but by the 20th century the distinctive 'tuxedo' pattern had become an essential part of the standard. The UKC recognised the breed in 1914, and the FCI gave it definitive acceptance in 1955.241
Fun facts for the dinner table
1
The Boston Terrier is the official dog of Massachusetts, as set out in the state's General Laws.8
2
Boston University students picked the Boston Terrier as their mascot on 28 February 1922, reportedly beating a moose. The mascot was later named Rhett after the 1939 film 'Gone with the Wind'.9
3
Its crisp white-on-dark markings look like formal evening wear, which is how it got the 'American Gentleman' nickname and its 'tuxedo' look.7
4
A Boston Terrier named Bruschi from Texas was recognised by Guinness World Records in 2012 as the dog with the largest eyes, each measuring 28 mm across.10
5
Show Bostons are split into three weight classes rather than being judged on height: under 15 lb, 15-20 lb and 20-25 lb.3
6
The standard requires specific white markings: a white band around the muzzle, a white blaze between the eyes and a white forechest.4
7
The Royal Kennel Club describes the Boston as the smallest of the bull breeds.6
Where the name comes from the story behind it
The breed name comes from the city of Boston, Massachusetts, where the breed was developed in the late 19th century. It was originally called the 'Boston Bull' or 'Boston Bull Terrier' before being officially named the Boston Terrier.2
Famous ones stars of the breed
Sergeant Stubby A Boston Terrier mix who served as a war hero in World War I, warning soldiers of gas attacks and locating the wounded.2
Rhett A Boston Terrier who became famous on Instagram for his expressive face and adventures, amassing over 1 million followers.2
I bounce out of bed, ready for fun. A quick game of fetch in the living room, my favorite ball fits perfectly in my mouth. Then my human and I go for a short walk; I wag at every neighbor we pass. Back inside, I curl up for a nap in a sunbeam. When the kids come home, I do a little spin dance to make them laugh. Life is full of happy moments.
A made-up story, just for fun. Not advice of any kind.
Recognised by the official bits
FCI
Standard No. 140, Group 9 (Companion and Toy Dogs), Section 11 (Small Molossian type dogs); definitive acceptance 29 Jan 1955; current standard published 28 Jan 20131
AKC
Non-Sporting Group; recognised 1893, two years after the Boston Terrier Club was founded in 18912
Popularity No. 23 in AKC registrations for 2025 (a position it has held since 2023)11
The care rhythm a typical week and year
A typical home-care rhythm for a Boston Terrier. A starting point, not a vet's advice.
Brushingevery week
Bathevery 8 weeks
Nail trimSooner if you hear clicking on the floorevery 3 weeks
Ear checkevery 2 weeks
Teeth brushingDaily brushing is idealevery day
Eye wipeGently wipe around the eyesevery day
ExerciseAbout 60 minutes a dayevery day
Heat care summerWalk in the cool morning and eveningevery day
Flea, tick and worm protectionSchedule as your vet recommendsas your vet recommends
Vet check-upSenior years usually start around age 10every year
Treats they will love homemade and simple
Boston Terrier tip
Boston Terriers need small, low-calorie treats to prevent weight gain, as obesity worsens their breathing problems. Dental chews can help reduce tartar, but always supervise due to their flat face.
Not veterinary advice. Check with your vet first if your pet has allergies, a health condition, is on a special diet or is pregnant. Treats should stay a small part of the daily food. Cut to a safe size and supervise. Terms of use
Owner questions the things everyone asks
How often should I feed my Boston Terrier, and at what times?
Feed your Boston Terrier at least two meals a day for adults, and three to four smaller meals for puppies. Stick to a consistent schedule, and check the food label for portion guidance. If unsure, ask your vet.512
What should a Boston Terrier eat, and which foods are dangerous?
Feed a complete, good-quality dog food suited to a small breed and its activity level. Avoid dangerous foods like chocolate, grapes, raisins, onions, garlic, xylitol, and others listed by the ASPCA. Always check with your vet for the best diet plan.513
How often should I bathe a Boston Terrier?
Furry Diary's starting plan suggests a bath every 56 days, and general guidance recommends at least once every three months. You can bathe more often if your Boston gets dirty, but avoid over-bathing to keep the coat healthy.14Pet Wiki plan
How often does a Boston Terrier need brushing?
Brush your Boston Terrier once a week to keep the short coat shiny and remove loose hair. Furry Diary's plan recommends weekly brushing, which matches general guidance.614Pet Wiki plan
How do I trim a Boston Terrier's nails, and how often?
Trim your Boston's nails when you hear them clicking on the floor, about every three weeks. Cut a little at a time and stop before the quick (the pink part). If unsure, ask your vet or a groomer for a demonstration.14Pet Wiki plan
How much exercise does a Boston Terrier need?
Your Boston Terrier needs about 20 to 60 minutes of activity daily, with several short walks and play sessions. Furry Diary's plan suggests around 60 minutes a day. Because of its short face, exercise in the cooler parts of the day.56Pet Wiki plan
How do I look after a Boston Terrier's teeth and ears?
Brush your Boston's teeth daily if possible, using dog toothpaste. Check ears every two weeks and gently clean the outer ear with a vet-recommended solution. Also wipe the face folds and eyes daily to keep them clean.14Pet Wiki plan
How long does a Boston Terrier live?
A Boston Terrier typically lives between 10 and 14 years. With good care, many enjoy a long, happy life.562
Is a Boston Terrier good with children and other pets?
Yes, Boston Terriers are known for being patient with children and sociable with other pets. They are cheerful and playful, making them great family companions.75243
Can a Boston Terrier be left alone?
Boston Terriers are people-focused and may not enjoy long periods alone. It varies by individual; ask your vet or a good breeder for advice on training and routine.
Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.
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