TOSA
| Acronym | Definition |
|---|---|
| TOSA | Transmit Optical Subassemblies |
| TOSA | Teacher on Special Assignment |
| TOSA | The Other Side Academy (Salt Lake City, UT) |
| TOSA | Texas Organ Sharing Alliance (Austin, TX) |
| TOSA | Transmitter Optical Subassembly (fiber network engineering) |
| TOSA | Transmitter Optical Subassembly (fiber-optics) |
| TOSA | Temple of Self-Ascension |
| TOSA | Total-ship Open Systems Architecture |
| TOSA | Tidewater Officers' Spouses' Association |
| TOSA | Technical Operations Support Activity |