| TLO | Task-Level Organization
| Others |
| TLO | Team Lights Out
| Others |
| TLO | Technology Licensing Office
| Others |
| TLO | Technology Licensing Organization
| Others |
| TLO | Terminal Learning Objective
| Others |
| TLO | Terrorism Liaison Officer
| Others |
| TLO | Texas Legislature Online
| Others |
| TLO | The Last One
| Others |
| TLO | The League Of
| Others |
| TLO | The Learning Organization
| Others |
| TLO | The List Online
| Others |
| TLO | The Little One
| Others |
| TLO | The Lone One
| Others |
| TLO | Time and Labor Online
| Others |
| TLO | Timed Local Override
| Others |
| TLO | Tol, Papua New Guinea
| Others |
| TLO | Tool Length Offset
| Others |
| TLO | Top- Level Objective
| Others |
| TLO | Top-Level Organization
| Others |
| TLO | Total Loss Only
| Others |
| TLO | Traffic Lights On
| Others |
| TLO | Training Liaison Officer
| Others |
| TLO | Transformational Learning Opportunities
| Others |
| TLO | Tropang Lokaretzzz Organization
| Others |
| TLO | True Living Organics
| Others |
| TLO | Tuckner Liberation Organization
| Others |
| TLO | Turn Lights On
| Others |
| TLO | Turning lights on
| Others |