Undersecretary of the Army

Under Secretary of the Army of the United States of America
Flag of the Under Secretary of the Army
Incumbent Ryan D. McCarthy since August 1, 2017
Department of the Army
Style	Mr. Under Secretary (informal) The Honorable (formal address in writing) Mr. Secretary (when acting as secretary)
Reports to	Secretary of the Army
Appointer	The President with Senate advice and consent
Term length	No fixed term
Inaugural holder	William H. Draper Jr.
Formation	September 18, 1947
Salary	Level III of the Executive Schedule
Website	Official Website

The United States Under Secretary of the Army is the second-highest ranking civilian official of the United States Department of the Army, serving directly under the United States Secretary of the Army. The Secretary and Under Secretary, together with two military officers, the Chief of Staff of the United States Army and the Vice Chief of Staff of the United States Army, constitute the senior leaders of the United States Army.

The following officials report to the Under Secretary of the Army: the Assistant Secretary of the Army (Manpower and Reserve Affairs), the Assistant Secretary of the Army (Installations, Energy and Environment), the Assistant Secretary of the Army (Civil Works), the Assistant Secretary of the Army (Acquisition, Logistics and Technology), the Assistant Secretary of the Army (Financial Management and Comptroller), and the General Counsel of the Army. There are also two Deputy Under Secretaries of the Army who assist the Under Secretary in his tasks.

The current Under Secretary of the Army as of August 2, 2017 is Ryan D. McCarthy, replacing Karl F. Schneider who had served as Acting Under Secretary of the Army since January 20, 2017.