FTNS
| Acronym | Definition |
|---|---|
| FTNS | Fixed Telecommunications Network Service |
| FTNS | Fitness Radio (online radio station) |
| FTNS | Fixed Telecommunications Network Services |
| FTNS | Fechtner Syndrome |
| FTNS | Focus, Train, Nourish, Sustain (fitness) |
| FTNS | Fundamental Theorem of Natural Selection (population genetics; R.A. Fisher) |
| FTNS | From the Named Source (flavoring extracts) |
| FTNS | Flight Track Navigation System |