| ETOP | Eastern Teaching Of Psychology 
| Others |
| ETOP | Education and Training in Optics and Photonics
| Others |
| ETOP | Educational Touring and Outreach Program (Traveling Jewish Theatre)
| Others |
| ETOP | Elective Termination of Pregnancy
| Others |
| ETOP | Emergency Transboundary Outbreak Pest
| Others |
| ETOP | Emerging Technologies Opportunity Program
| Others |
| ETOP | Employment and Training Official Program
| Others |
| ETOP | Environmental Technology Opportunities Portal
| Others |
| ETOP | Environmental Threat and Opportunity Profile
| Others |
| ETOP | Environmental Threat Opportunity Profile
| Others |
| ETOP | Environmental Threat Opportunity Project
| Others |
| ETOP | European Thoracic Oncology Platform
| Others |