| Acronym | Definition |
|---|
| ITI | International Theatre Institute (Unesco) |
| ITI | Information Technology Institute |
| ITI | International Trachoma Initiative |
| ITI | Instituto Nacional de Tecnologia da Informação (Portuguese: National Institute of Information Technology; Brazil) |
| ITI | International Training Institute (Australia) |
| ITI | Information Technology Industry council |
| ITI | Information Technology Infrastructure |
| ITI | Intertrial Interval (psychology/psychiatry) |
| ITI | Industrial Technology Institute |
| ITI | Integrated Thematic Instruction |
| ITI | Instituto Tecnológico de Informática (Spain) |
| ITI | Infrastructure Technology Institute (Northwestern University) |
| ITI | Information Technology Interfaces (Conference) |
| ITI | Industrial Training Institute (India) |
| ITI | Indian Telephone Industries |
| ITI | Intermodal Transportation Institute |
| ITI | Intelligent Transportation Infrastructure |
| ITI | Intermediary Technology Institute (Scotland) |
| ITI | International Training Inc (Shacklefords, VA) |
| ITI | Idaho Technology Inc. |
| ITI | Integrated Technical Information |
| Iti | Transient Inward Current |
| ITI | Industrial Technical Institute |
| ITI | Illinois Teen Institute |
| ITI | Impact Teams International (Freeland, WA) |
| ITI | Indal Technologies Inc. |
| ITI | Investigator Training International |
| ITI | Immediate Transient Incapacitation (nuclear weapons casualty criterion) |
| ITI | Integrated Technology Incorporated |
| ITI | Institute of Translation and Interpretating (UK) |
| ITI | Indonesian Technical Institute |
| ITI | Inspection/Test Instruction |
| ITI | Instrument Transformers Incorporated, Clearwater, FL |
| ITI | Intestinal Tract Infection (medicine) |
| ITI | Infrared Thermographic Inspection |
| ITI | Intensive Therapeutic Intervention |
| ITI | International Thrift Institute |
| ITI | Integrated Technical Infrastructure |
| ITI | Infant Teleinquiry |