EWD may refer to:
Gaming
- Extreme Warfare Deluxe, a text-based wrestling-themed computer game
Science and technology
- Edsger W. Dijkstra (1930–2002), Dutch systems and computer scientist
- EWDs, his manuscripts
- Electric window defogger, on vehicular rear windows
- Electrical wiring diagram
- Electrowetting display, a form of electronic paper
Rail transport
- Earlswood railway station (West Midlands), in England
- Eastwood railway station, in Sydney, Australia
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