| 121st Infantry Regiment | |
|---|---|
&sq=&lang=&file=File:121InfRegCOA.jpg) | |
| Active | 1916–present |
| Country |  United States |
| Allegiance |  Georgia |
| Branch |  Georgia Army National Guard |
| Type | Regiment |
| Role | Infantry |
| Nickname(s) | "Old Gray Bonnet" |
| Motto(s) | Faciendum Est (It Shall Be Done) |
| Engagements | World War I World War II War in Iraq War in Afghanistan |
| Insignia | |
| Distinctive unit insignia | &sq=&lang=&file=File:US_Army_121st_Infantry_Reg_DUI-Left_and_Right.png) |
| U.S. Infantry Regiments | ||||
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The 121st Infantry Regiment is an infantry regiment of the Georgia National Guard that saw combat service in the First and Second World Wars. As a result of army-wide reorganization in the 1950s, the 121st Infantry ceased to exist as a single unit; today, various units of the Georgia National Guard trace their lineage to the 121st Infantry.