| 1st Air Defense Artillery | |
|---|---|
 Coat of arms | |
| Active | 1821 |
| Country | United States |
| Branch | Army |
| Type | Air Defense Artillery |
| Garrison/HQ | |
| Motto(s) | "Primus Inter Pares" (First among equals) |
| Mascot(s) | Oozlefinch |
| Engagements | Battle of Fort Sumter War of 1812 Indian Wars Mexican War U.S. Civil War World War II Southwest Asia Operation Iraqi Freedom |
| Insignia | |
| Distinctive unit insignia |  |
The 1st Air Defense Artillery is an air defense artillery regiment in the United States Army first formed as a field artillery unit in 1821.[3]