| USA | United States Army US-Armee, http://www.army.mil |
| AUS | Army of the United States [engl.] |
| ECOM | United States Army Electronics Command |
| USM | United States Mail |
| USP | United States Pharmacopeia |
| USS | United States Ship |
| USAF | United States Air Force |
| FGOTUS | First Gentleman of the United States |
| USA | United States of America Vereinigte Staaten von Amerika |
| POTUS | President Of The United States |
| US | United States [of America] |
| USMP | United States Microgravity Payload |
| USMC | United States Marine Corps |
| USNO | United States Naval Observatory Washington, DC, http://www.usno.navy.mil/ |
| USIA | United States Information Agency |
| USGS | United States Geological Survey |
| USAC | United States Auto Club |
| USFL | United States Football League |
| USGA | United States Golf Association |
| USDA | United States Department of Agriculture |
| AFUS | Air Force of the United States [engl.] Amerikanische Luftwaffe |
| USD | United States [of America] Dollar [s] |
| USCG | United States Coast Guard |
| USCA | United States Code, Annotated |
| USAC | United States Answer Center |
| U.S. Dep. Agric. Bull. | United States Department of Agriculture Bulletin Zeitschrift |
| Contrib. U. S. Natl. Herb. | Contributions from the United States National Herbarium Zeitschrift |
| USEPA | United States Environmental Protection Agency |
| U.S. Dep. Agric. Misc. Publ. | United States Department of Agriculture Miscellaneous Publication Zeitschrift |
| USN | Kriegsmarine der Vereinigten Staaten von Amerika [United States Navy] http://www.navy.mil |
| Proc. Natl. Acad. Sci. U.S.A. | Proceedings of the National Academy of Science of the United States of America Zeitschrift |
| SA | Salvation Army |
| RA | Regular Army |
| TSA | The Salvation Army Köln, http://www.heilsarmee.de- Int., http://www1.salvationarmy.org |
| GA | General of the Army |
| CAE | Canadian Army Europe |
| AoP | Army of Players [engl.] Web-Game-Gruppe |
| ANC | Army Nurse Corps |
| AN | Army - Navy [engl.] Zusammenfassung von Armee und Marine |
| ACU | Army Combat Uniform |
| GAR | Grand Army of the Republic |
| A.M. | Army Manual [engl.] Armee-Handbuch |
| IRA | Irish Republican Army |
| A.E.C. | Army Electronics Command [engl.] Sektion der US Armee |
| APO | Army Post Office [engl.] Feldpostamt |
| ASN | Army Serial Number [engl.] |
| BAOR | British Army of the Rhine [engl.] Frühere britische Rheinarmee |
| K9 | canine [K9 corps-army dogs] Hundestaffel |
| AGCT | Army General Classification Test [engl.] Wehrtauglichkeitstest bezogen auf die Lernfähigkeit des Soldaten |
| DOS | Density Of States Physik/ Magnetismus |