| TNR | Kansas City Southern Railway
| Others |
| TNR | Kansas City Southern Railway Company
| Others |
| TNR | New Republic
| Others |
| TNR | Targa Newfoundland Rally
| Others |
| TNR | Team New Racers
| Others |
| TNR | Teledata Networking Resources, Incorporated
| Others |
| TNR | The New Relics
| Others |
| TNR | The New Republic
| Others |
| TNR | The New Republicans
| Others |
| TNR | This New Republic
| Others |
| TNR | Times New Roman
| Others |
| TNR | Trap and Release
| Others |
| TNR | Trap Neuter And Release
| Others |
| TNR | Trap Neuter and Return
| Others |
| TNR | Trap Neuter Release
| Others |
| TNR | Trap Neuter Return
| Others |
| TNR | Trap, Neuter, and Release
| Others |
| TNR | Tredair Neutral Regular
| Others |
| TNR | Trofeo Nazionale Rally
| Others |
| TNR | True Negative Rate
| Others |
| TNR | True Non-Resident
| Others |
| TNR | Tyneside Net Radio
| Others |