71Boston Terriers come in three standard colours: brindle, seal, or black with even white markings. These compact, short-tailed dogs are known for their lively temperament and high intelligence. Their distinctive square-shaped heads and expressive round eyes give them an alert yet friendly appearance, making them ideal family pets.
The breed's coat colours are specifically defined. Brindle appears as a striped pattern, while seal may look black but shows a reddish cast in sunlight. All colours must have white markings on the muzzle, between the eyes, across the chest, and partially up the legs.
Size variations exist within the breed:
- Lightweight: around 7kg
- Middleweight: 7-9kg
- Heavyweight: 9-11kg
Their physical characteristics include:
- Square skull with flat top and no wrinkles
- Wide-set, dark round eyes (blue eyes are a fault)
- Small ears set close to the head's corners
- Compact body standing 30-50cm tall
Originally bred for fighting, modern Boston Terriers have lost that aggression. They thrive as companion animals, known for being playful and affectionate. Regular exercise and mental stimulation suit their energetic nature. When choosing a puppy, focus on temperament and health rather than colour alone, as all standard colours are equally valid.

March 26, 2026
