| Acronym | Definition |
|---|
| IDFA➣International Dairy Foods Association |
| IDFA➣Identifier for Advertisers (software) |
| IDFA➣International Documentary Filmfestival Amsterdam |
| IDFA➣Institute for Divorce Financial Analysts (Southfield, MI) |
| IDFA➣International Drug Free Athletics (Canada) |
| IDFA➣Industrial Development Financing Authority (various locations) |
| IDFA➣Improved Decision-Feedback Algorithm |
| IDFA➣Illinois Development Financed Authority |
| IDFA➣International Digital Fighters Alliance (website) |