| Acronym | Definition |
|---|
| TFN➣Tax File Number (Australia) |
| TFN➣Tribunal Fiscal de la Nación (Spanish: National Tax Court; Argentina) |
| TFN➣TheForce.Net (Star Wars Fan Site) |
| TFN➣Texas Freedom Network |
| TFN➣Tsawwassen First Nation (Canada) |
| TFN➣Transferrin (protein) |
| TFN➣Today's Financial News (Baltimore, MD) |
| TFN➣Transport File Name |
| TFN➣Transverse File Name |
| TFN➣Transfer File Name |
| TFN➣Tax File Number |
| TFN➣Tribe Flood Network |
| TFN➣The Foundation (hip-hop band) |
| TFN➣Taiwan Fixed Network |
| TFN➣Tribe Flood Network (Computer virus TCPSYN flood, ICMP Echo and directed attacks) |
| TFN➣The Food Network |
| TFN➣Toronto FreeNet |
| TFN➣Toll Free Number |
| TFN➣The Freecycle Network (Freecycle Network, Inc.) |
| TFN➣The Football Network (also seen as TFNK) |
| TFN➣Thanks for Nothing |
| TFN➣Third Frontier Network |
| TFN➣Tour of Nilgiris (Indian bicycle tour) |
| TFN➣Till Further Notice |
| TFN➣Trochanteric Fixation Nail |
| TFN➣Tobacco Free Nurses (Robert Wood Johnson Foundation) |
| TFN➣Teach First Norway (educational project) |
| TFN➣Tenerife, Canary Islands, Spain - Tenerife Norte Los Rodeos (Airport Code) |
| TFN➣Toronto Field Naturalists (Canada) |
| TFN➣Thomson Financial Network (website) |
| TFN➣Track & Field News (periodical) |
| TFN➣Thin Film Network |
| TFN➣Third Floor North (Santa Ana, CA architectural sign company) |
| TFN➣Thermoplastic Fixture Wire Nylon Jacketed (UL) |
| TFN➣Trochanteric Femoral Nail |
| TFN➣The Future Noise (monthly music exhibition) |
| TFN➣Theoretical Foundations of Nursing (education) |
| TFN➣Train Functional Number |
| TFN➣Target File Number |
| TFN➣Transnational Feminist Network |
| TFN➣Trade Forums Noob (Star Wars Galaxies) |
| TFN➣Total Frontal Nudity |
| TFN➣Technique Française du Nettoyage SAS (France) |