| PTCI | Pacific Tree Climbing Institute | 太平洋爬树学会 |
| PTCI | Percutaneous Transluminal Coronary Intervention | 经皮腔内冠状动脉介入治疗 |
| PTCI | Post-Traumatic Cognitions Inventory | 创伤后认知量表 |
| PTCI | Progressive Telecommunications | 渐进式电信 |
| PTCI | Physical Therapy Clinic, Inc. | 物理治疗诊所。 |
| PTCI | Programmable Telecommunications Interface | 可编程电信接口 |