| ICRO | Imaging Contract Research Organization 
| Others |
| ICRO | Intelligent Church Resources Online
| Others |
| ICRO | International Cell Research Organization
| Others |
| ICRO | International Clinical Research Organisation
| Others |
| ICRO | Investigation and Consumer Reporting Office
| Others |
| ICRO | Irish Cave Rescue Organisation
| Others |
| ICRO | Islamic Culture and Relations Organization
| Others |
| ICRO | Organisation Internationale de Recherche sur la Cellule
| Others |