| Acronym | Definition |
|---|
| NECTAR | Network for Effective Collaboration Technologies Through Advanced Research |
| NECTAR | New Era Classroom Technology and Research (Ottawa, Ontario, Canada) |
| NECTAR | National Electronic Clinical Trials and Research Network |
| NECTAR | North East Combined Transport Activists Roundtable (UK) |
| NECTAR | Netherlands Expertise Centre for Tropical Apicultural Resources (est. 1990; Netherlands) |
| NECTAR | Network of European CNS (Central Nervous System) Transplantation and Restoration (research organization) |
| NECTAR | Nanostructured Energy Conversion Technology and Research (University of California, Santa Cruz) |