| 3rd Infantry Division Sustainment Brigade | |
|---|---|
&sq=Envato&lang=en&file=File:3rd_Infantry_Division_SSI_(1918-2015).png) 3rd Infantry Division shoulder sleeve insignia, worn by the brigade | |
| Active | 1 July 1957 – present |
| Country |  United States of America |
| Branch |  United States Army |
| Type | Sustainment Brigade |
| Role | Sustainment |
| Size | Brigade |
| Part of | &sq=Envato&lang=en&file=File:3rd_Infantry_Division_DUI.svg){kind=small} 3rd Infantry Division |
| Garrison/HQ | Fort Stewart, Georgia |
| Motto(s) | "Heart of the Rock" |
| Decorations | Presidential Unit Citation |
| Insignia | |
| Distinctive unit insignia | &sq=Envato&lang=en&file=File:3SustainBdeDUI.jpg) |
| Former shoulder sleeve insignia | &sq=Envato&lang=en&file=File:3rd_Sustainment_Brigade.jpg) |
The 3rd Infantry Division Sustainment Brigade is a sustainment brigade of the United States Army headquartered at Fort Stewart, Georgia. The 3rd Division Sustainment Brigade (DSB) is responsible for providing logistical support to the 3rd Infantry Division, however the modular nature of the brigade means that it takes on other roles while deployed.
Though its lineage dates back to 1957, the unit was not designated as a separate unit until 2005. The 3rd Division Sustainment Brigade has served three tours in Iraq in support of Operation Iraqi Freedom, its first tour being the initial invasion and securing of the country, followed by a second tour of duty as logistics support for units around Baghdad, and finally as the multinational division supply lines in the northern division of the country.
The Brigade left for a planned nine-month deployment to Afghanistan in late November 2012.