EFTO
| Acronym | Definition |
|---|---|
| EFTO | Elementary Teachers' Federation of Ontario (Canada) |
| EFTO | Torbacka (airport code; Finland) |
| EFTO | Engine Failure on Take-Off (aviation) |
| EFTO | Encrypt for Transmission Only |
| EFTO | Encrypt(ed) for Transmission Only (US DoD) |
| EFTO | Efficiency of Power Generation for Transportation Use with Oil (Carolina Environmental Program) |