| Acronym | Definition |
|---|
| ADDC➣Automatic Data Direction Control (computer hardware) |
| ADDC➣Abu Dhabi Distribution Company (Abu Dhabi, United Arab Emirates) |
| ADDC➣Active Directory Domain Controller |
| ADDC➣Association of Desk and Derrick Clubs (est. 1949) |
| ADDC➣Aeronautical Design and Development Centre (India) |
| ADDC➣Add with Carry (microprocessor instruction) |
| ADDC➣Albemarle Downtown Development Corporation (North Carolina) |
| ADDC➣Air Defense Direction Center |
| ADDC➣Abridged Dewey Decimal Classification |
| ADDC➣Ammonium Diethyldithiocarbamate (acid) |