|Under Secretary of the Army|
since February 8, 2022
|United States Department of the Army|
|Style||Mr. Under Secretary|
|Reports to||Secretary of the Army|
|Appointer||The President |
with Senate advice and consent
|Term length||No fixed term|
|Formation||September 18, 1947|
|First holder||William Henry Draper Jr.|
|Succession||18th in SecDef succession|
|Salary||Executive Schedule, level III|
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 is also a Deputy Under Secretary of the Army who assists the Under Secretary in his tasks, including direction of the Army Science Board and the Army Analytics Group, and oversight of the Army's test and evaluation efforts. 
The position of Under Secretary of the Army was vacant beginning on January 20, 2021. Christopher Lowman was the senior official performing the duties of Under Secretary, pending either the appointment of an Acting Under Secretary or the confirmation of an Under Secretary.   On July 13, 2021, President Joe Biden announced he would nominate former Assistant Secretary of the Air Force for Manpower and Reserve Affairs Gabriel Camarillo to the post of Undersecretary of the Army.  Camarillo was confirmed by voice vote on February 2, 2022. 
The office was created in 1947 as part of the general reorganization of the United States Armed Forces occasioned by the National Security Act of 1947. The office was initially styled "Under Secretary of War" and was created by Department of War General Order 67, dated July 25, 1947.  Three weeks later, on August 16, 1947, Department of War Circular 225 redesignated the position as "Under Secretary of the Army". 
The following men have held the post: 
|No.||Portrait||Name||Term start||Term end||President(s) served under|
|1||William Henry Draper Jr.||September 18, 1947||February 28, 1949||Harry S. Truman|
|2||Gordon Gray||May 1949||June 1949|
|3||Tracy Voorhees||August 1949||April 1950|
|4||Archibald S. Alexander||May 1950||April 1952|
|5||Karl R. Bendesten||May 1952||October 1952|
|6||Earl D. Johnson||October 1952||January 1954|
|7||John Slezak||February 1954||January 1955||Dwight D. Eisenhower|
|8||Charles C. Finucane||February 1955||April 1958|
|9||Hugh M. Milton II||August 1958||January 1961|
|10||Stephen Ailes||February 1961||January 1964|
|11||Paul Robert Ignatius||February 1964||December 1964||Lyndon B. Johnson|
|12||Stanley Rogers Resor||April 1965||July 1965|
|13||David E. McGiffert||November 1965||February 1969|
|14||Thaddeus Beal||March 1969||September 1971||Richard Nixon|
|15||Kenneth E. BeLieu||September 1971||June 1973|
|16||Herman R. Staudt||October 1973||May 1975||Gerald Ford|
|17||Norman Ralph Augustine||May 1975||July 1977|
|18||Walter B. LaBerge||July 1977||February 27, 1980||Jimmy Carter|
|19||Robert Harry Spiro Jr. ||February 28, 1980||October 6, 1981|
|20||James R. Ambrose||October 7, 1981||February 1988||Ronald Reagan|
|21||Michael P. W. Stone||May 1988||August 14, 1989||George H.W. Bush|
|22||John W. Shannon||August 14, 1989||November 23, 1993|
|23||Joe R. Reeder||November 24, 1993||November 12, 1997||Bill Clinton|
|24||Robert M. Walker||November 13, 1997||October 15, 1998|
|25||Bernard D. Rostker||November 1998||May 23, 2000|
|26||Gregory R. Dahlberg||May 23, 2000||March 4, 2001|
|27||Les Brownlee||November 10, 2001||December 16, 2004||George W. Bush|
|28||Raymond F. DuBois||February 18, 2005||February 20, 2006|
|28||Pete Geren||February 21, 2006||July 23, 2007|
|29||Nelson M. Ford ||July 24, 2007||January 20, 2009|
|30||Joseph W. Westphal ||September 21, 2009||March 28, 2014||Barack Obama|
|31||Brad Carson||March 28, 2014||June 30, 2015|
|–||Eric Fanning (acting)||June 30, 2015||November 3, 2015|
|–||Thomas E. Hawley (acting) ||November 3, 2015||December 17, 2015|
|32||Patrick Murphy ||December 18, 2015||January 20, 2017|
|–||Karl F. Schneider (acting)||January 20, 2017||July 31, 2017||Donald Trump|
|33||Ryan McCarthy ||August 1, 2017||September 30, 2019|
|34||James E. McPherson||July 23, 2019(acting)||March 25, 2020(acting)|
|March 25, 2020||January 20, 2021|
|–||Christopher Lowman (acting)||January 20, 2021||February 7, 2022||Joe Biden|
|35||Gabriel Camarillo||February 8, 2022||Incumbent|
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