| 40th Infantry Regiment | |
|---|---|
&sq=&lang=&file=File:40thInfRegtCOA.png) Coat of arms | |
| Active | 1917-1944 |
| Country |  United States |
| Branch |  United States Army |
| Type | Infantry |
| Motto(s) | none |
| Insignia | |
| Distinctive unit insignia | &sq=&lang=&file=File:40_Inf_Rgt_DUI.png) |
| U.S. Infantry Regiments | ||||
|
The 40th Infantry Regiment is an inactive infantry regiment in the United States Army.