| Abbreviation | Definition |
|---|---|
| TCF | Tor Carding Forums |
| TF | Teenforumz a forum |
| TFAP | Tokyo Forum For Analytic Philosophy |
| TFF | The Fanfiction Forum |
| TGLF | Tribal Government Leadership Forum |
| THAB | True Hearts Against Bigotry |
| TIFO | Translation and Interpreting Forum Olomouc |
| TOGAF | The Open Group Architecture Forum |
| TQF | Toronto Quality Forum |
| TRF | The Rocketry Forum |
| TSF | Tech Support Forum |
| TSF | The Stamp Forum |
| TTIF | The Tracker Invites Forums |
| TVCF | Tri Valley Consultant's Forum |
| UFH | UmweltForum Haushalt |
| VAF | Vernacular Architecture Forum |
| VBF | Vietnam Business Forum |
| VF | Vladefan Forums |
| VGBF | Virtual Global Biodiversity Forum |
| VMF | Vintage Mustang Forums |