DDI
DDI stands for:
- Direct Dialing In, see dial
- The official Italian name of the Istrian Democratic Assembly, a regional party in Croatia
- Device Driver Interface, interface between (Windows) operating system and device drivers
- Diverging Diamond Intersection, also DCD, a newer type of a motorway junction ( traffic)
- Deputy Director of Information, a function within the Central Intelligence Agency
- Data Documentation Initiative, standard for the description of social science data, metadata model
DdI stands for:
- Dideoxyinosine, didanosine see
- Disambiguation
- Abbreviation