Dai
- Bảo Đại
- DAI Global
- DAI Personal Computer
- Da'i
- Da'i al-Mutlaq
- Dai (Eighteen Kingdoms)
- Dai (Han dynasty)
- Dai (Sixteen Kingdoms)
- Dai (Spring and Autumn period)
- Dai (Warring States period)
- Dai (Yindu)
- Dai (cryptocurrency)
- Dai (given name)
- Dai (spider)
- Dai (surname)
- Dai Commandery
- Dai County
- Dai language (disambiguation)
- Dai people
- De Administrando Imperio
- Deutsches Archäologisches Institut
- Diamond Aircraft Industries
- Diffuse axonal injury
- Digital Author Identifier
- Distributed artificial intelligence
- Do As Infinity
- Dynamic ARP Inspection
- Mercedes-Benz Group