- ADCN stands for Art Directors Club Nederland (Dutch: Art Directors Club Netherlands; commerical communication)
- ADCN stands for Avionics Data Communication Network
- ADCN stands for Academic Dental Careers Network (American Dental Education Association; Washington, DC)
- ADCN stands for Arctic Desmo Club Norway (Norwegian motorcycle club)
- ADCN stands for Advance Design Change Notice (military aviation)
- ADCN stands for Advanced Drawing Change Notice
ADCN