Posted in Business & Finance, Information Technology, Internet Slang, Schools & Education D2D stands for Device-to-Device (communications) D2D stands for Disk-To-Disk (backup technology/strategy) D2D stands for Digital-to-Digital (converter) D2D stands for Day to Day D2D stands for Data to Decision (program) D2D stands for Door to Door (sales) D2D stands for Design to Delivery (various organizations) D2D stands for Discovery to Delivery (various meanings) D2D stands for Dealer to Dealer D2D stands for Database to Database D2D stands for Department to Department