| GIFF | Bitmap graphics (GIF87A/GIF89A CompuServe Graphics Interchange Format) 
| Others |
| GIFF | Garritan Instruments For Finale
| Others |
| GIFF | Gasparilla International Film Festival
| Others |
| GIFF | Geneva International Film Festival
| Others |
| GIFF | Geocaching International Film Festival
| Others |
| GIFF | Ghana Institute Of Freight Forwarders
| Others |
| GIFF | Global Islamic Finance Forum
| Others |
| GIFF | Greenwich International Film Festival
| Others |
| GIFF | Guam International Film Festival
| Others |
| GIFF | Guanajuato International Film Festival
| Others |
| GIFF | Guelph International Film Festival
| Others |
| GIFF | Guwahati International Film Festival
| Others |