The Giant Schnauzer is a large, powerful, compact breed of dog. It is one of several Schnauzer breeds. Although it is a fairly large breed, it does not need a tremendous amount of exercise, making it suitable for urban living.

The breed originated in the Middle Ages in Germany by selectively breeding the Standard Schnauzer for larger and larger sizes. In earlier centuries it was a popular herding breed, but its need for more food than some breeds made it less popular for farmers on tight budgets or with limited resources.

Its popularity grew again in the latter part of the 19th century, when it was used as a drover and as a guard dog.

The Giant Schnauzer has a harsh, wiry outer coat and dense, soft undercoat. Coat color is typically black but can also be pepper-and-salt. It weighs between 70 and 77 lb (32-35 kg) and stands 23.5 to 27.5 in (59 to 70 cm) at the withers.

When moving at a fast trot, a properly built Giant Schnauzer will single-track. Back remains strong, firm, and flat.

This breed is generally hardy; however, arthritis does occur in shoulders or hips. Its life expectancy is about 11 or 12 years.

See also Standard Schnauzer and Miniature Schnauzer.