| Acronym | Definition |
|---|
| COIN | Counter Insurgency |
| COIN | Collaborative Innovation Network (various organizations) |
| COIN | Counterinsurgency Operations |
| COIN | Coordination, Organizations, Institutions, and Norms in Agent Systems (workshop) |
| COIN | Converted Organics, Inc. (Boston, MA) |
| COIN | Co-Installer |
| COIN | Computer Output Identification Number |
| COIN | Community of Interest Network |
| COIN | Conference on Optical Internet |
| COIN | Centro de Orientacion e Investigacion Integral (Spanish: Center for Integrated Research and Training; Dominican Republic) |
| COIN | Counterinsurgency Aircraft |
| COIN | Center of Influence Networking |
| COIN | Common Operator Interface for Navy (US Navy) |
| COIN | Clinical Oncology Information Network |
| COIN | County of Oxford Integrated Network |
| COIN | Community Online Information Network |
| COIN | Coalition of Independent Nationals (Fiji political party) |
| COIN | Conflict of Interest/Noticeboard (Wikipedia) |
| COIN | Composite Organic-Inorganic Nanoparticle |
| COIN | Client Oriented Information System (Colorado Department of Human Services’ eligibility database) |
| COIN | Customer Order and Invoicing System |
| COIN | Coat of Invisible Notes (audio-visual research) |
| COIN | Composites Optimized by Infusion through Nanotubes |
| COIN | California Organization Investment Network (Sacramento, CA) |
| COIN | Co-Operative Bank Information Network |