The Glen of Imaal Terrier is a medium-sized dog. Males typically weigh between 35-40 pounds, while females usually range from 30-35 pounds. Their height generally stands around 13-15 inches at the shoulder.

Glen of Imaal Terriers are known for their friendly, clever, and affectionate nature. They are typically good-natured and sociable with people and other pets. While they have a playful side, they can also be independent and strong-willed, necessitating consistent training and socialization to manage their behavior.

The coat of the Glen of Imaal Terrier is rough, dense, and weather-resistant, providing protection from the elements. It typically has a wiry texture and appears in various colors, including wheaten, blue, brindle, and combinations of these. Regular grooming is necessary to maintain the coat and prevent matting.

This breed thrives in active households where they can receive regular exercise and mental stimulation. Glens adapt well to different living situations, including apartments, as long as they receive sufficient exercise and interaction. They do best in homes where they are not left alone for long periods, as they enjoy companionship.

Glen of Imaal Terriers enjoy a variety of activities that engage their hunting instincts and energy levels. They appreciate regular walks, playtime, and interactive games. In addition to daily exercise, they can participate in dog sports such as agility, obedience, and earth dog trials, which allow them to utilize their natural abilities.