The United States Army Quartermaster Corps, formerly the Quartermaster Department, is a Sustainment, formerly combat service support (CSS), branch of the United States Army. It is also one of three U.S. Army logistics branches, the others being the Transportation Corps and the Ordnance Corps.

The U.S. Army Quartermaster Corps mission is to support the development, production, acquisition, and sustainment of general supply, Mortuary Affairs, subsistences, petroleum and water, material and distribution management during peace and war to provide combat power to the U.S. Army. The officer in charge of the branch for doctrine, training, and professional development purposes is the Quartermaster General. The current Quartermaster General is Brigadier General Douglas M. McBride Jr.