| CSDI | California Society for Democracy in Iran 
| Others |
| CSDI | Cape Society for Dental Implantology
| Others |
| CSDI | Center for Student Diversity and Inclusion
| Others |
| CSDI | Center for the Study of Democratic Institutions
| Others |
| CSDI | Central Securities Depository of Iran
| Others |
| CSDI | Centre for the Study of the Domestic Interior
| Others |
| CSDI | Chaumont Systems Development Inc
| Others |
| CSDI | Church Stage Design Ideas
| Others |
| CSDI | Civil Service Development Institute
| Others |
| CSDI | Cloud Shadow Detection Index
| Others |
| CSDI | Cold Spell Duration Index
| Others |
| CSDI | Colombia Strategic Development Initiative
| Others |
| CSDI | Communication for Sustainable Development Initiative
| Others |
| CSDI | Community Self Determination Institute
| Others |
| CSDI | Community Self-Determination Institute
| Others |
| CSDI | Comparative Survey Design and Implementation
| Others |
| CSDI | Complete System Design Inc
| Others |
| CSDI | Compressed Serial Digital Interface
| Others |
| CSDI | Conception Selection Distribution Internationale
| Others |
| CSDI | Controlled Single Document Interface
| Others |
| CSDI | Cornerstone Software Development Inc
| Others |
| CSDI | Council on Staff Diversity and Inclusion
| Others |
| CSDI | Crop Specific Drought Index
| Others |