ETSA
| Acronym | Definition |
|---|---|
| ETSA | European Textile Services Association (est. 1994; Brussels, Belgium) |
| ETSA | Electricity Trust of South Australia |
| ETSA | European Telecommunication Services Association |
| ETSA | East Timor Students Association (Australia) |
| ETSA | Extended Topology Synthesis Algorithm |
| ETSA | Seaman Apprentice, Electronics Technician Striker (Naval Rating) |