| Acronym | Definition |
|---|
| TNS | The Next Step (various organizations) |
| TNS | Travailleurs Non Salariés (French: Self-Employed) |
| TNS | Transaction Network Services (est. 1990) |
| TNS | The Naturist Society |
| TNS | Trust and Safety |
| TNS | Transparent Network Substrate |
| TNS | Team No Sleep |
| TNS | The Night Shift |
| TNS | Tenable Network Security (various locations) |
| TNS | Théatre National de Strasbourg (French: Strasbourg National Theater) |
| TNS | Transaction Network Services |
| TNS | Trivial Name Server |
| TNS | Things Not Seen (Andrew Clements novel) |
| TNS | Taylor Nelson Sofres Plc (London, UK) |
| TNS | Technology and Network Services (Southern University and A&M College; Baton Rouge, LA) |
| TNS | The Natural Source (Australia) |
| TNS | The New School (Newark, DE) |
| TNS | Total Net Sales (finance) |
| TNS | Thai Nippon Steel (Thailand) |
| TNS | Transcutaneous Nerve Stimulation |
| TNS | Telecommunications and Network Services (various universities) |
| TNS | Total Network Solutions |
| TNS | Trauma Nurse Specialist |
| TNS | Taran Noah Smith (actor) |
| TNS | Temporal Noise Shaping |
| TNS | Transmission Network Systems (various companies) |
| TNS | Tensin |
| TNS | Transit Network Selection (telecommunications) |
| TNS | Transit Network Selection |
| TNS | Triple Nine Society (est. 1978) |
| TNS | Turner Network Sales (Turner Broadcasting) |
| TNS | The New Seminary (est. 1979; interfaith seminary) |
| TNS | Times News Service |
| TNS | Tao Nan School |
| TNS | Target Name Space |
| TNS | Tokyo Nuclear Services Co., Ltd. (Japan) |
| TNS | Time Not Specified |
| TNS | Tooth-and-Nail Syndrome |
| TNS | 6-P-Toluidino-2-Naphthalenesulfonic Acid |
| TNS | Tactical Name Server |
| TNS | Taco Neck Syndrome :-) |
| TNS | Telecom & Network Services |
| TNS | Technology Needs Survey |
| TNS | Tactical Navigation System |
| TNS | Transcultural Nursing Society |
| TNS | Transparent Network Services |
| TNS | Travel & Night Subsistence (see T&S) |
| TNS | Tazewell Numismatic Society |
| TNS | Tactical Name Service |
| TNS | Take No Stuff (polite form) |
| TNS | Tungston Neutron Source |
| TNS | The Naked Sun (novel) |
| TNS | Travel Notification Service (Travelling Connect) |
| TNS | Terra Neutral Separate (electrical grounding) |
| TNS | Tennessee Nuclear Specialties, Inc (Jonesborough, TN) |