| Abbreviation | Definition |
|---|---|
| TMACOG | Toledo Metropolitan Area Council Of Governments |
| TMAD | Talmadge, a neighborhood in the city of San Diego |
| TMCR | Turtle Mountain Chippewa Reservation |
| TMI | Three Mile Island |
| TMO | Town Management Organization |
| TMO | Town Municipal Officer |
| TN | Tamil Nadu, India |
| TNDP | Tennessee Democratic Party |
| TNL | Terre-Neuve-et-Labrador |
| TNRCC | Texas Natural Resource Conservation Commission |
| TOI | Township Officials of Illinois |
| TOK | Top Of Kansas |
| TOM | Top Of Michigan |
| TONYSS | Tests of New York State Standards |
| TOPA | Tenant Opportunity to Purchase Act |
| TOS | Town Of Southampton |
| TOV | Town Of Vail, Colorado |
| TP | Terrace Park |
| TP | Travis Park |
| TPA | Toronto Parking Authority |