| ITSU | ICG (International Coordination Group) for the Tsunami Warning System in the Pacific | 太平洋海啸预警系统国际协调小组 |
| ITSU | Information Technology Services Unit | 信息技术服务股 |
| ITSU | International Coordination Group for the Tsunami Warning System in the Pacific | 太平洋海啸预警系统国际协调小组 |
| ITSU | Information Technology Support Unit | 信息技术支助股 |
| ITSU | Iberhansaetic Transport System | 伊比利亚运输系统 |