| CIRF | California International Relations Foundation 
| Others |
| CIRF | Cambridge Interdisciplinary Reproduction Forum
| Others |
| CIRF | Cancer Immunology Research Foundation
| Others |
| CIRF | Center For Individual Responsibility And Freedom
| Others |
| CIRF | Center for Interdisciplinary Research in Fluids
| Others |
| CIRF | Center for Islam and Religious Freedom
| Others |
| CIRF | Centralized Instructional Resource Facility
| Others |
| CIRF | Certyfikat Innowacyjna i Rzetelna Firma
| Others |
| CIRF | Chronic Illness Relief Fund
| Others |
| CIRF | Circular Flow
| Others |
| CIRF | Coach in Running Fitness
| Others |
| CIRF | Coaching In Running and Fitness
| Others |
| CIRF | Community Infrastructure Renewal Fund
| Others |
| CIRF | Converging Industries Research Foundation
| Others |
| CIRF | Curve Indicator Random Field
| Others |