| CTRR | Coffee Time Reviewer Read award | 咖啡时间评论员阅读奖 |
| CTRR | Current Topics in Radiation Research | 辐射研究现状 |
| CTRR | Cloquet Terminal Railroad | Cloquet码头铁路 |
| CTRR | Customer Trouble Report Rate | 客户故障报告率 |
| CTRR | Chisholm Trail RailRoad Company | Chisholm Trail铁路公司 |
| CTRR | Center for Tissue Regeneration and Repair | 组织再生和修复中心 |
| CTRR | Cumbres & Toltec Scenic RailRoad | Cumbres & Toltec风景区的铁路 |
| CTRR | Cipher Text Receiver Ready | 密码文本接收器就绪 |