| Acronym | Definition |
|---|
| NECO➣New Edge Cougar Owners |
| NECO➣Navy Electronic Commerce Online |
| NECO➣Northern and Eastern Colorado |
| NECO➣Northern Engineering Company (Fraser Shipyards, Inc.; Superior, WI) |
| NECO➣National Ethnic Coalition of Organizations, Inc. (New York, New York) |
| NECO➣National Examinations Council (UK) |
| NECO➣Nuclear Engineering Company |
| NECO➣North European Combat Organization |