| Acronym | Definition |
|---|
| SECO➣State Secretariat for Economic Affairs (Bern, Switzerland) |
| SECO➣State Energy Conservation Office |
| SECO➣Secoisolariciresinol |
| SECO➣Sumter Electric Cooperative, Inc. (Florida) |
| SECO➣Section Commander (Australia) |
| SECO➣Sociedad Española de Cirugía de la Obesidad |
| SECO➣Secrétariat d'Etat al'Economie |
| SECO➣Sustainer Engine Cut-Off |
| SECO➣Sveriges Akademikers Centralorganisation |
| SECO➣Second Engine Cut Off |
| SECO➣Second Stage Engine Cut Off (aerospace) |
| SECO➣Sector Emergency Control Officer |
| SECO➣Luciano Secciani and Danielle Conti (Italian company; est. 1979) |
| SECO➣Secondary Electron Conduction Orthicon |