WD
- Band 3
- County Waterford
- DAS Air Cargo
- International Organization for Standardization
- Internet slang
- Royal Canadian Air Force Women's Division
- The Walking Dead (TV series)
- WD postcode area
- WD-40
- WD-40 Company
- Walt Disney
- War Department (United Kingdom)
- Wardair
- Watchdog (disambiguation)
- Watership Down
- Web Dynpro
- Wedding
- Week
- Western Digital
- Western Economic Diversification Canada
- Whipple's disease
- White Dwarf (magazine)
- White dwarf
- Wikidata
- Wing defence
- Winn-Dixie
- Withdrawal (disambiguation)
- Working directory