The Belgian Shepherd (also known as the Belgian Sheepdog, Belgian Malinois, or the Chien de Berger Belge) is a breed of medium-sized herding dog from Belgium. While predominantly considered a single breed, it is bred in four distinct varieties based on coat type and colour; the long-haired black Groenendael, the rough-haired fawn Laekenois, the short-haired fawn Malinois, and the long-haired fawn Tervuren; in the United States the American Kennel Club considers the four varieties to be separate breeds.

The breed descends from a common type of shepherd dog found throughout Western Europe that includes such modern breeds as the Bouvier des Ardennes, Dutch Shepherd and German Shepherd. A common sight in the service of Belgian shepherds for centuries, it was not until the end of the 19th century that a breed club was formed and attempts were made to standardise the breed.

In addition to its historical role as a herding dog, Belgian Shepherds have been used as assistance dogs, companion dogs, detection dogs, guard dogs, guide dogs, police dogs, and search and rescue dogs. The breed has a long history of being used by military forces, serving in both World Wars; they continue to be used by a number of militaries in a variety of roles to this day.