| TMSS | Taiwanese Modern Spelling System 
| Others |
| TMSS | Tamborine Mountain State School
| Others |
| TMSS | Telecommunications and Multimedia and Support Services
| Others |
| TMSS | Thangamara Mohila Sabuj Sangha
| Others |
| TMSS | The Management School Sydney
| Others |
| TMSS | Thengamara Mohila Sabuj Sangha
| Others |
| TMSS | Thermal Management Systems Symposium
| Others |
| TMSS | Tidewater Model Soaring Society
| Others |
| TMSS | Towanda- Monroeton Shippers Lifeline Incorporated
| Others |
| TMSS | Towanda-Monroeton Shippers Lifeline
| Others |
| TMSS | Trailer Mounted Support System
| Others |
| TMSS | Transportation Management Services Solution
| Others |
| TMSS | Travel Management Services Supplier
| Others |
| TMSS | Triangle Medieval Studies Seminar
| Others |
| TMSS | Tripartite Maritime Scholarship Scheme
| Others |
| TMSS | Tunisian Management Science Society
| Others |
| TMSS | Tunisian Management Society Science
| Others |
| TMSS | Two-Micron Sky Survey
| Others |