CSIF
| Acronym | Definition |
|---|---|
| CSIF | Calvert Social Investment Fund |
| CSIF | Canada Strategic Infrastructure Fund |
| CSIF | Calgary Society of Independent Filmmakers (est. 1978; Calgary, Alberta, Canada) |
| CSIF | Communications Service Industrial Fund (US DoD) |
| CSIF | Coalition to Support Iowa Farmers (est. 2004; Des Moines, IA) |
| CSIF | Contractor Support for Initial Fielding |