| CTIA | Cellular Telecommunications Industry Association | 蜂窝电信工业协会 |
| CTIA | Computer Technology Industry Association | 计算机技术行业协会 |
| CTIA | Cellular Telecommunications and Internet Association | 蜂窝电信和互联网协会 |
| CTIA | Cellular Telecommunciations and Internet Association | 蜂窝电信和互联网协会 |
| CTIA | Cie de ThÉâtre l'Impromptu de l'Assomption (French; l'Assomption, QuÉbec) | Cie de ThÉâtre l'Impromptu de l'Assomption (French; l'Assomption, QuÉbec) |
| CTIA | Common Training Instrumentation Architecture | 通用训练仪器体系结构 |
| CTIA | Committee to Investigate Assassinations | 暗杀调查委员会 |
| CTIA | Certificate in Teaching Italian to Adults | 成人意大利语教学证书 |
| CTIA | Color Television Interface Adapter (Atari 8-bit computer custom chip) | 彩色电视接口适配器（Atari 8位计算机定制芯片） |