| Acronym | Definition |
|---|
| ACDN➣Action des Citoyens pour Le Désarmement Nucléaire (French: Citizens Action for Nuclear Disarmament) |
| ACDN➣Auburn Community Development Network (youth leadership program; Auburn, New South Wales, Australia) |
| ACDN➣A Content Delivery Network (computing) |
| ACDN➣Asociacion Colombiana De Neurologia (Spanish: Colombian Association of Neurology; Bogota, Colombia) |
| ACDN➣Automatic Call Distribution Number (Nortel phone systems) |
| ACDN➣Administrative Call-processing Data Node |