| Acronym | Definition |
|---|
| GCAF | Georgia's Clean Air Force (vehicles) |
| GCAF | General Capital Asset Fund |
| GCAF | German Club Alumni Foundation (Blacksburg, VA) |
| GCAF | Gulf Coast American Fabrication (Naples, FL) |
| GCAF | Garden City Anime Festival (Ontario, Canada) |
| GCAF | Groupe Celtique Assurances Finances (French: Celtic Insurance Finance Group) |
| GCAF | Gross Cost to Avert a Fatality (International Maritime Organization Formal Safety Assessment) |
