| CREF | Centre de Recherche en Ecologie et Forestrie | 生态与林业研究中心 |
| CREF | Computer-Ready Electronic Files | 计算机就绪电子文件 |
| CREF | Computer Resources Evaluation Facility | 计算机资源评估设施 |
| CREF | Capital Region Energy Forum | 首都地区能源论坛 |
| CREF | Coastal Resource Enhancement Fund | 沿海资源增强基金 |
| CREF | Connection Refused | 连接被拒绝 |
| CREF | College Retirement Equities Fund | 大学退休股票基金 |
| CREF | Computer Ready Electronic Files | 计算机就绪电子文件 |