| Abbreviation | Definition |
|---|---|
| ICTA | Institute of Certified Tax Administrators |
| ICTC | Institute for Catholic Thought and Culture |
| ICTE | Institute for the Conservation of Tropical Environments |
| ICTI | Information and Communication Technology Institute |
| ICTI | International Communication Training Institute |
| ICTS | Institute for Clinical and Translational Science |
| ICTS | Institute of Clinical and Translational |
| ICTS | Institute of Clinical and Translational Sciences |
| ICW | Institute for Collaborative Working |
| ICW | Institute on California and the West |
| ICWA | Institute of Cost and Work Accountancy |
| ICWA | Institute of Cost and Works Accountants |
| ICWA | Institute of costs and works accountants |
| ICWA | Institute of Current World Affairs |
| ICWAI | Institute of Cost and Work Accountant of India |
| ICWAI | Institute of Cost Works Accountants of India |
| ICWC | Institution Community Work Crew |
| ICWC | Institution/Community Work Crews |
| ICWI | Interdisciplinary Child Welfare Institute |
| ICWI | International Clean Water Institute |