| Acronym | Definition |
|---|
| CREN | Colorado Real Estate Network |
| CREN | Corporation for Research and Educational Networking |
| CREN | Centro de Recuperação e Educação Nutricional (Brasil) |
| CREN | Calgary Real Estate News (Calgary, Canada) |
| CREN | Christian Real Estate Network |
| CREN | Computer Research Education Network |
| CREN | Certified Real Estate Negotiator (professional designation) |
| CREN | Consortium for Research and Education Network |
| CREN | Cree Encephalitis |
| CREN | Citizens Research Education Network |
| CREN | Coalition for Environmentally Responsible Conventions |