| Acronym | Definition |
|---|
| ACEN➣Anime Central (website) |
| ACEN➣Academy of Canadian Executive Nurses (Ottawa, Ontario, Canada) |
| ACEN➣Association of Consulting Engineers Nigeria (est. 1972; Lagos, Nigeria) |
| ACEN➣Anglican Communion Environmental Network |
| ACEN➣Association of Computer Engineers Nepal (est. 2003) |
| ACEN➣Assembly of Captive European Nations |