| Acronym | Definition |
|---|
| C2D | Core 2 Duo (Intel processor) |
| C2D | Contrat de Désendettement et de Développement (French: Contract of Debt Reduction and Development) |
| C2D | Click to Download |
| C2D | Crash to Desktop (software malfunction) |
| C2D | Character to Decimal |
| C2D | Click to Dvd |
| C2D | Concept to Design (various organizations) |
| C2D | Committed to Diversity (task force; Oregon State University) |
| C2D | Command and Control Directorate (US Army CECOM) |
| C2D | Close 2 Death (gaming community) |
| C2D | Connect to Decode (tuberculosis genome mapping project) |
| C2D | Close 2 Death Recordings (UK Record Label) |
| C2D | Contract-to-Direct (job classification) |