| IFDA | Illinois Funeral Directors Association 
| Others |
| IFDA | Independent Floorcovering Dealers of America
| Others |
| IFDA | Independent Front Drive Axle
| Others |
| IFDA | Indian Film Directors Association
| Others |
| IFDA | Indiana Funeral Directors Association
| Others |
| IFDA | Individual Faculty Development Account
| Others |
| IFDA | International Fog and Dew Association
| Others |
| IFDA | International Folk Dance Association
| Others |
| IFDA | International Foodservice Distributors Association
| Others |
| IFDA | International Foundation for Development Alternatives
| Others |
| IFDA | International Furnishings and Design Association
| Others |
| IFDA | Iowa Funeral Directors Association
| Others |
| IFDA | Iranian Food & Drug Administration
| Others |
| IFDA | Irish Flying Disc Association
| Others |