ACEN
| 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 |