| ITIP | i-Calendar Transport Independent Interoperability Protocol 
| Others |
| ITIP | Idaho Transportation Investment Program
| Others |
| ITIP | Income Tax Instalment Payments
| Others |
| ITIP | Information Technology Infrastructure Program
| Others |
| ITIP | Information Theoretic Inequality Prover
| Others |
| ITIP | Instructional Theory Into Practice
| Others |
| ITIP | Integrated Transportation Information Platform
| Others |
| ITIP | International Trade and Investment Policy
| Others |
| ITIP | International Trade Investment Policy
| Others |
| ITIP | Interregional Transportation Improvement Program
| Others |
| ITIP | IT Infrastructure Projects
| Others |