| ICWC | Immigration Center for Women and Children 
| Others |
| ICWC | Institution Community Work Crew
| Others |
| ICWC | Institution/Community Work Crews
| Others |
| ICWC | International Centre for Water Cooperation
| Others |
| ICWC | International Christian Wellness Conference
| Others |
| ICWC | International Conductors Workshop and Competition
| Others |
| ICWC | Interstate Commission for Water Coordination
| Others |
| ICWC | Iron County Watershed Coalition
| Others |
| ICWC | Islamic Center of Williamson County
| Others |