The Sixth Region of the Association of the United States Army (AUSA) is one of the nine geographical regions established by AUSA to facilitate support for the Army and strengthen connections within the community. The Sixth Region primarily covers the western United States, including states such as  California, Montana, Nevada, Oregon, and Washington.

AUSA is a private, non-profit educational organization that supports America's Army—Active, Army National Guard, Reserve, civilians, retirees, and family members. The association works to foster public support of the Army's role in national security and provides professional development opportunities for its members. Through its regions and chapters, AUSA connects local communities with the Army, advocating for the needs and concerns of soldiers and their families.

The Sixth Region plays a crucial role in these efforts by organizing events, hosting meetings, and coordinating initiatives that benefit the Army community in its area. These activities include educational programs, awards, scholarships, and networking opportunities, all aimed at enhancing the well-being and readiness of soldiers and their families while promoting the Army's values and missions.

The Sixth Region of the Association of the United States Army was organized 22 May 1963. Mr. Benjamin H. Swig served as the first Region President from 1963-1964.

Sixth Region was deactivated on 25 September 1964. Sixth Region was reorganized on 18 May 1979.

Sixth Region Presidents and years of service are as follows: 

1963-1964 Mr. Benjamin H. Swig

1964-1979 Deactivated

1979-1982 MG James T. Keltner 

1982-1984 MG Charles D. Palmer 

1984-1988 Mr. Kirby P. Low

1988-1991 BG Alexander R. Cunningham 

1991-1996 MG (CA) Ronald H. Markarian 

1996-2000 MG John A. Hemphill

2000-2004 CSM Joseph R. Sweeney 

2004-2008 COL David A. Appling 

2008-2012 COL George D. Lanning

2012-2016 LTC Sharlee "Charley" W. Smith 

2016-2020 COL Richard P. “Phil” Stage

2020-2024 SGM Jerry L. Glesmann

2024-Present CSM Joseph R. Sweeney 

• The aims and objectives of the Sixth Region of the Association of the United States Army shall be wholly educational, literary, and scientific, fostering esprit de corps, dissemination of professional knowledge, and the promotion of the efficiency of the Army components of the Armed Forces and our country; and by Regional action to further the aims and objectives of the Association.
• The principal functions of the Region are to promote increased membership and participation within existing Chapters; to coordinate activities of the State Presidents; to organize and assist in the development of new chapters within the Region area, subject to coordination with the respective State President and any Chap­ters affected and approval by National Headquarters; to foster good public relations and educational programs within the Region area; and to assist Chapters in establishing and implement­ing meaningful programs.
• With respect to Chapters existing within the Regional area, Sixth Region’s function is one of facilitation, coordination, and assistance. Chapters report directly to the Association’s National Headquarters.
• With respect to Members at Large within the Regional area, Sixth Region’s function is primarily one of facilitating their assignment to existing Chapters and/or the formation of new Chapters to serve them.