| 3rd Chemical Brigade | |
|---|---|
&sq=Envato&lang=en&file=File:3ChemicalBdeSSI.svg) 3rd Chemical Brigade shoulder sleeve insignia | |
| Active | 1942–present |
| Country |  United States |
| Branch |  United States Army |
| Type | Chemical |
| Role | Training |
| Size | Brigade |
| Part of | TRADOC |
| Garrison/HQ | Fort Leonard Wood, Missouri |
| Nickname(s) | "Army's Forge" |
| Motto(s) | "Bring The Heat" |
The 3rd Chemical Brigade is a training brigade of the United States Army based at Fort Leonard Wood, Missouri, retaining for historic reasons its name.