Under Secretary of Defense for Policy

Under Secretary of Defense for Policy
Seal of the Department of Defense
Flag of an Under Secretary of Defense
Incumbent
Amanda J. Dory
Acting 
since 27 April 2024
United States Department of Defense
Office of the Secretary of Defense
StyleMadam Under Secretary
Reports toSecretary of Defense
Deputy Secretary of Defense
AppointerThe President
with Senate advice and consent
Term lengthNo fixed term
Formation1978
First holderStanley Rogers Resor
Succession5th in SecDef succession
DeputyPrincipal Deputy Under Secretary of Defense for Policy
SalaryExecutive Schedule, level III
Websitepolicy.defense.gov

The United States under secretary of defense for policy (USDP) is a high level civilian official in the United States Department of Defense. The under secretary of defense for policy is the principal staff assistant and adviser to both the secretary of defense and the deputy secretary of defense for all matters concerning the formation of national security and defense policy.

The under secretary is normally appointed from civilian life by the president with the advice and consent of the Senate. The incumbent is acting under secretary Amanda J. Dory, who took office upon the resignation of acting under secretary Sasha Baker.