| 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 |