| Acronym | Definition |
|---|
| NECA | National Electrical Contractors Association |
| NECA | National Exchange Carrier Association |
| NECA | National Electrical and Communications Association (Australia) |
| NECA | National Electricity Code Administrator (Australia) |
| NECA | National Employment Counseling Association |
| NECA | National Energy Conservation Association (Canada) |
| NECA | National Educational Computing Association |
| NECA | Newport Chemical Activity (Newport, IN) |
| NECA | Nippon Educational Computing Association |
| NECA | Navajo Engineering Construction Authority |
| NECA | New England Cemetery Association |
| NECA | National Export Control Application |