The Malinois /ˈmælɪnwɑː/ is a medium-to-large breed of dog, sometimes classified as a variety of the Belgian Shepherd dog rather than as a separate breed. The name "Malinois" is derived from Malines, the French name for the breed's Flemish city of origin, Mechelen.
The breed is used as a working dog for tasks including detection of odors such as explosives, accelerants (for arson investigation), and narcotics; tracking humans for suspect apprehension in police work; and search and rescue missions. The U.S. Secret Service uses Belgian Malinois to guard the grounds of the White House.
In Belgium, Germany, the Netherlands and other European countries, as well as in the United States, Canada, Australia and Hong Kong, the Malinois is bred primarily as a working dog for personal protection, detection, police work, search and rescue, and sport work like Schutzhund. The United States Secret Service and Royal Australian Air Force use the breed along with other working lines such as Dutch Shepherd, and also GSD. In the United States Armed Forces, German shepherds lead the way, but close behind follows the Belgian Malinois.

In India, The ITBP and National Security Guard (NSG) commando unit have inducted Malinois breed into its K-9 unit.

Malinois dogs are used by the Oketz, the K-9 unit of the Israel Defense Forces. Malinois are a suitable size to be picked up by their handlers when required, while still being large enough to control human aggressors. Compared to previously used breeds (such as German Shepherds and Rottweilers), the shorter coats and fair and neutral colors of Malinois are better adapted to natural conditions and less prone to induce heatstroke