| ITIO | In The Interest Of 
| Others |
| ITIO | Information Technology Information Office
| Others |
| ITIO | Information Technology Infrastructure and Operations
| Others |
| ITIO | Information Technology Infrastructure Operations
| Others |
| ITIO | Institute of Therapeutic Innovations and Outcomes
| Others |
| ITIO | Instituto de Terapia Integrada e Oriental
| Others |
| ITIO | International Tax and Investment Organisation
| Others |
| ITIO | International Trade and Investment Office
| Others |
| ITIO | Inventory Transportation Integrated Optimization
| Others |