DDI

DDI may stand for:

Companies and organizations

• DD International, international TV channel in India
• Development Dimensions International, a talent management company
• Direct Democracy Ireland, a political party in Ireland
• KDDI, formerly DDI, a Japanese telecommunications company
• Data Disc, Incorporated, a defunct American computer hardware company

Science

• Drug–drug interaction
• Didanosine, an antiretroviral drug

Technology

• Acronym for DNS/DHCP/IPAM; see IP Address Management
• Direct dial-in, or direct inward dialing, a telecommunications service
• DirectX Device Driver Interface
• D&D Insider, an online method used to deliver Dungeons & Dragons content
• Diverging diamond interchange, a road structure that guides traffic

Other uses

• Dance Dance Immolation, interactive performance piece
• Data Documentation Initiative, a standard for describing surveys, questionnaires, and statistical data files
• Democracy-Dictatorship Index, a binary measure of democracy and dictatorship
• Divisional detective inspector, a rank in the Criminal Investigation Department of London's police