| WD | Western Digital |
| WU | Western Union |
| CW | Country and Western |
| WTR | Western Test Range Raketenstartplatz-Testgelände USA |
| West.Pol.Quart. | Western Poitical Quarterly Fachzeitschrift |
| WRL | Western Research Laboratory |
| WRN | Western [West-/westlich] |
| WEOG | Western European and Others Group |
| WSMC | Western Space & Missile Center |
| WEEB | Western European EDIFACT Board |
| WHTI | Western Hemisphere Travel Initiative |
| West. J. Appl. For. | Western Journal of Applied Forestry Zeitschrift |
| CWRU | Case Western Reserve University |
| WELAC | Western European Laboratory Accreditation Conference |
| EM | Western Airlines [IATA-Airline-Code/ Australien] |
| DIV | Division |
| D.B. | division blindée [frz.] Panzerdivision |
| ES&D | Engineering Service Division |
| ESD | Entry Systems Division |
| TDD | Time Division Duplex |
| TDM | Time Division Multiplexer |
| TMD | Time Division Multiplexing |
| GPD | Graphics Products Division |
| OTD | Optical Time Division |
| EPD | Entry Products Division |
| ECD | East Coast Division [Sun] |
| CTD | Computing and Telecommunications Division |
| DSO | Division Spezielle Operationen |
| DLO | Division Luftbewegliche Operationen |
| Div | Division [10.000 - 20.000 Soldaten - im Heer] Bundeswehr-Kürzel-Truppenstärke |
| CDM | Code Division Multiplex |
| CODIT | Code Division Testbed |
| WSD | Work Station Division |
| CSD | Customer Service Division |
| ESD | Engineering Service Division |
| DSO | Division für Spezielle Operationen Berlin, http://www.bundeswehr.de |
| DLO | Division für luftbewegliche Operationen Berlin, http://www.bundeswehr.de |
| TDMA | Time Division Multiple Access Funkverfahren [digital] |
| WWDM | Wide Wavelength Division Multiplex |
| WDM | Wavelength Division Multiplexer / Multiplexing |
| STDM | Statistical Time Division Multiplexing |
| DARC | Division Alarm Recording Center |
| SDMA | Space Division Multiple Access |
| AAD | ASCII Adjust before Division [engl.] Computerbefehl |
| FDM | Frequency Division Multiplexer/Multiplexing |
| GKSD | Garde-Kavallerie-Schützen-Division |
| HPD | High Performance Division [Sun group] |
| DAP | Division Advisory Panel [of NSF [q.v.] DNCRI [q.v.]] |
| CWDM | Coarse Wave Division Multiplex |
| ODTM | Optical Time Division Multiplexing |