| CSDN | chinese software developer net | 中国软件开发联盟 |
| CSDN | Computer Science Developer's Network | 电脑技术开发网 |
| CSDN | Circuit Switched Data Network | 电路交换数据网 |
| CSDN | Circuit Switched Digital Network | 电路交换数字网络 |
| CSDN | Computer Science Developer's Network | 电脑技术开发网 |
| CSDN | Customs Secure Data Network | 海关安全数据网络 |
| CSDN | Circuit Switched Data Network (ITU) | 电路交换数据网络（ITU） |