| CW | Country and Western |
| WU | Western Union |
| WD | Western Digital |
| WTR | Western Test Range Raketenstartplatz-Testgelände USA |
| WRL | Western Research Laboratory |
| West.Pol.Quart. | Western Poitical Quarterly Fachzeitschrift |
| WEOG | Western European and Others Group |
| WRN | Western [West-/westlich] |
| WEEB | Western European EDIFACT Board |
| West. J. Appl. For. | Western Journal of Applied Forestry Zeitschrift |
| WSMC | Western Space & Missile Center |
| CWRU | Case Western Reserve University |
| WHTI | Western Hemisphere Travel Initiative |
| WELAC | Western European Laboratory Accreditation Conference |
| EM | Western Airlines [IATA-Airline-Code/ Australien] |
| ARP | Anti Revolutionäre Partei |
| ADK | Anti-Doping Kommission Organisation des Deutsche Sportbundes [DSB] |
| MSAV | Microsoft Anti Virus |
| AVK | Anti-Viren Kit [engl.] |
| ABS | Anti-Blockier-System |
| ANTI-MoBB | ANTI Mobbing - Bullying - Bossing e.V. Ahrensfelde, http://www.anti-mobb-ev.de |
| AAGB | Arbeitskreis Anti Graffiti Berlin |
| OLAF | Office de la lutte anti-fraude [frz.] Amt für Betrugsbekämpfung |
| ADL | Anti-Defamation League [engl.] Amerikanische Liga zur Unterbindung der Diffamierung von Juden |
| ABM | Anti Ballistic Missile [engl.] Bodengestütztes Abwehrsystem |
| ASW | Anti-Submarine-Warfare [engl.] Militärflugzeug extremer Reichweite |
| ATEX | Anti-Terrorism Exercise [engl.] Anti-Terror-Übungen |
| BAL | British Anti-Levisite [engl.] Kreuzgas-Gegenmittel |
| UCLAF | Unité de coordination de la lutte anti-fraude Dienststelle zur Koordinierung der Betrugsbekämpfungsmaßnahmen |
| ASTA | Anti Spam Technical Alliance [engl.] |
| ASTF | Anti-SPAM Task Force [engl.] |
| ASWP | Anti-Submarine Warfare Prop [engl.] Propeller-Flugzeugtyp |
| AVAR | Anti-Virus Asia Researcher [engl.] Organisation zur Bekämpfung gegen Computerviren |
| CARO | Computer Anti-Virus Research Organization |
| CARS | Coherent Anti-Stokes Raman Spectroscopy |
| ASTA | Anti-SPAM Technical Alliance [engl.] |
| AAFC | Anti-Aircraft Fire Control [engl.] Flugabwehrfeuer |
| EICAR | European Institute of Computer Anti-Virus Research |