WD

WD , Wd or wd stands for:

Was driving , systematic search for WLANs with the help of a vehicle
Wardair Canada , former Canadian charter airline under the IATA code
Catalog raisonné based on Winton Dean of the works of Georges Bizet , listing of the works of the composer Georges Bizet (1838–1875)
Western Digital , American manufacturer of hard drives
Vienna Document , binding agreement of all OSCE member states on transparency and confidence building
Scientific services of the German Bundestag , subdivision of the administration of the German Bundestag
the postcode area Watford (as the first letter of a postcode from the United Kingdom )
withdrawn: withdrawn or downgraded
Roland WD , seaplane variant of the Roland D.II
the Wiental-Donaukanal line of the Viennese electric light rail

WD as a distinguishing mark on license plates: