| ITSP | Individual Treatment and Service Plan 
| Others |
| ITSP | Individualized Transition Skills Program
| Others |
| ITSP | Information Technology and System Planning
| Others |
| ITSP | Information Technology Security Plan
| Others |
| ITSP | Information Technology Service Provider
| Others |
| ITSP | Information Technology Services Program
| Others |
| ITSP | Information Technology Society Project
| Others |
| ITSP | Information Technology Strategic Plan
| Others |
| ITSP | Information Technology Strategic Portfolio
| Others |
| ITSP | Information Technology Strategy Planning
| Others |
| ITSP | Information Technology Support Program
| Others |
| ITSP | Innovation and Technology Support Programme
| Others |
| ITSP | Instrument Top Sample Preparation
| Others |
| ITSP | Integrated Test Program Schedule
| Others |
| ITSP | Inter-regional Transportation Strategic Plan
| Others |
| ITSP | International Trauma Studies Program
| Others |
| ITSP | Internet Telephone Service Provider
| Others |
| ITSP | Internet Telephony Service Provider
| Others |
| ITSP | Interprofessional Teaching Scholars Program
| Others |
| ITSP | Interregional Transportation Strategic Plan
| Others |
| ITSP | Interstate Transportation of Stolen Property
| Others |
| ITSP | Intrastate Telecommunications Service Providers
| Others |