D2D may refer to:
Technology edit
- Device-to-device, proximity-based direct communications between mobile nodes orchestrated by the cellular operator
- Direct2D, a hardware-accelerated 2D API built on top of Direct3D 10
- Direct2Drive, an online video game and entertainment distributor and retail store
Other uses edit
- Door-to-door, a sales or political technique for engaging an audience
- Dot to Dot Festival, a music festival in the United Kingdom
- Delhi 2 Dublin, a Canadian world music band
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