| Acronym | Definition |
|---|
| ICMA | International City/County Management Association |
| ICMA | International Capital Market Association |
| ICMA | International Computer Music Association |
| ICMA | International Card Manufacturers Association |
| ICMA | Institute of Certified Management Accountants (Australia) |
| ICMA | International Conference on Mechatronics and Automation |
| ICMA | International City Managers Association (now International City/County Management Association) |
| ICMA | International Country Music Association |
| ICMA | Institute for Computational Mathematics and Applications (Pittsburgh, PA) |
| ICMA | Indian Chemical Manufacturers Association |
| ICMA | International Conference on Machine Automation |
| ICMA | International Classified Media Association (est. 1986) |
| ICMA | Institute of Cost and Management Accountants |
| ICMA | International Christian Maritime Association |
| ICMA | Intelligence Community Management Account |
| ICMA | Illinois Country Music Association |
| ICMA | Interactive Computer Marked Assessments |
| ICMA | International Congress of Maritime Arbitrators |
| ICMA | Indiana Concrete Masonry Association |
| ICMA | Interconnect Charge Memorandum Account |
| ICMA | Illinois Cast Metals Association |
| ICMA | Initial Clothing Monetary Allowance |
| ICMA | Individual Case Management Association |
| ICMA | Irish Cable Manufacturers Association |
| ICMA | Iuris Canonici Medii Aevi Consociatio |
| ICMA | Illinois Coal Mining Act |
| ICMA | Instituto de Comunicación Y Medio Ambiente (Spanish: Institute of Communication and the Environment) |