| CTN | Chinese Television Network | 传讯电视 |
| CTN | cotangent | [数]余切 |
| CTN | carton | 纸箱 |
| CTN | Croatia Airlines (ICAO code) | 克罗地亚航空公司（ICAO代码） |
| CTN | Canton Railroad Company | 广东铁路公司 |
| CTN | Continuous Tone Negative(s) | 连续负音 |
| CTN | Christian Television Network | 基督教电视网 |
| CTN | CALS Test Network | CALS测试网络 |
| CTN | Compensated Twisted-Nematic | 补偿扭曲向列 |
| CTN | CÓdigo TributÁrio Nacional (Brazilian National Tax Code) | CÓdigo TributÁrio Nacional (Brazilian National Tax Code) |
| CTN | Canadian Technology Network | 加拿大技术网络 |
| CTN | Commercial Technology Network (NASA) | 商业技术网络（NASA） |
| CTN | Customer Transaction Note | 客户交易记录 |
| CTN | City Transformation Network | 城市改造网络 |
| CTN | Certified Traditional Naturopath | 经认证的传统自然疗法 |
| CTN | Cruise To Nowhere | 巡航到无处 |
| CTN | Commercial Type Number | 商业型号 |
| CTN | Cable Television Network | 有线电视网络 |
| CTN | Campus Television Network (University College Dublin student run TV channel) | 校园电视网（都柏林大学学院学生运营的电视频道） |
| CTN | Clinical Trials Network (NIDA) | 临床试验网络（NIDA） |
| CTN | Certification Test Network (NASA) | 认证测试网络（NASA） |
| CTN | Cambodian Television Network | 柬埔寨电视网 |
| CTN | Consumer Trend News (online magazine) | 消费者趋势新闻（在线杂志） |
| CTN | Core Transmission Network | 核心传输网络 |
| CTN | Cryptologic Technician Networks (Navy rating) | Cryptologic技术人员网络（海军等级） |
| CTN | Convenience, Tobacco, and News | 便利、烟草和新闻 |
| CTN | Central Test Node | 中央测试节点 |
| CTN | Cartoon Network | 卡通网络 |
| CTN | Charity Trustees Network | 慈善受托人网络 |
| CTN | Case/Throat/Nozzle (rocket motor component) | 案例/喉咙痛/喷头(火箭发动机部件) |
| CTN | computerized tomographynumber | 计算机断层摄影编号 |
| CTN | Computerized Telephony Network | 计算机电话网络 |
| CTN | Contactless Technology Network | 非接触式技术网络 |
| CTN | College Television Network | 大学电视网 |
| CTN | Corporate Telecommunications Network | 公司电信网络 |
| CTN | China Teanet | 中国茶网 |
| CTN | Critical Technologies Newsletter | 关键技术新闻稿 |
| CTN | Central de Trabajadores de Nicaragua (Spanish: Nicaraguan Workers' Central) | Trabajadores德·尼加拉瓜的中心(西班牙语:尼加拉瓜工人的中央) |
| CTN | Cellular Telephone Network | 蜂窝电话网络 |
| CTN | Composite Tactical Network | 复合战术网络 |
| CTN | Consumers' Telecommunications Network (Australia) | 消费者的电信网络(澳大利亚) |
| CTN | Coming Together News | 汇聚新闻 |
| CTN | Community Television Network | 社区电视网络 |
| CTN | Cyclone Televison Network | 旋风电视网 |
| CTN | Can't Talk Now | 现在不能和你谈 |
| CTN | Count-Transmission Number | 计数传输编号 |
| CTN | Certified Transplant Nurse | 注册移植护士 |
| CTN | Christian Therapists Network | 基督教治疗师网络 |
| CTN | Confectionery, Tobacconist, and Newsagent (UK retailer) | 糖果、烟草和新闻代理（英国零售商） |
| CTN | Canadian Television Network (before 1962) | 加拿大电视网（1962年之前） |
| CTN | Customer Telephone Number | 客户电话号码 |