If the Glen of Imaal Terrier has a reputation, it is as “the quiet terrier.” Compared with the busy, vocal, always-on character of many terrier breeds, the Glen is notably level-headed — gentle and easygoing in the house, game and determined when there is a job to do. It is this combination of courage and composure that wins the breed such devoted owners.
Calm at Home, Game Outdoors
Indoors, a well-socialised Glen is typically relaxed, affectionate and undemanding — content to share the sofa and follow you from room to room. The breed standard itself calls for a dog that is “active, agile and silent when working” and “spirited but not aggressive.” Glens tend not to be nuisance barkers, which endears them to neighbours, though they will sound off with real conviction if something genuinely warrants it. They make alert, sensible watchdogs.
Brave, Loyal and Stubborn
Under the calm exterior beats the heart of a true earth dog. Glens are brave to a fault, deeply loyal to their people, and blessed — or cursed — with a terrier's independent streak. They are intelligent and perfectly trainable, but they are not pushovers; a Glen will weigh up whether your request is worth its while. Owners who lead with calm, consistent, reward-based training get a willing partner. Those who nag or bully get a dog that simply digs in.
With Other Dogs and Pets
Honesty matters here. Some Glens live happily with other dogs; some do not. The breed can show dog-to-dog assertiveness, and in Glen households it is often the females who contest the top spot — two females together should be introduced with particular care. Early, positive socialisation makes a real difference, but it does not override every dog's individual nature. A strong prey drive also means small pets and secure fencing deserve thought. None of this makes the Glen difficult; it simply makes it a terrier that deserves a clear-eyed owner.
With Families and Children
Glens are, as a rule, wonderful family dogs: sturdy enough to take the rough-and-tumble of family life, patient, and genuinely fond of their people. As with any breed, interactions between dogs and young children should always be supervised, and children taught to treat the dog with respect. The American Kennel Club describes the breed as spirited, gentle and loyal — a fair summary of a dog that manages to be both a proper terrier and a restful companion.
Setting a Glen Up to Succeed
Give a Glen early socialisation, fair and consistent leadership, sensible exercise and a job for its mind, and you will see the breed at its best: a calm, courageous, characterful friend. Read next about the breed's health and grooming and care.