| Acronym | Definition |
|---|
| SENA | Servicio Nacional de Aprendizaje (Spanish, Colombia) |
| SENA | Stichting ter Exploitatie van Naburige Rechten (Dutch: Foundation for the Exploitation of Neighboring Rights; Netherlands) |
| SENA | Stora Enso North America |
| SENA | Schneider Electric North America (Palatine, Illinois) |
| SENA | Senior Employment Nursing Adviser (UK) |
| SENA | Switched Enterprise Network Architecture |
| SENA | Société Energie Nucléaire Franco-Belge des Ardennes (French: French-Belgian Nuclear Energy Company of Ardennes; est. 1960) |
| SENA | Supporting Entity Not Available (Telabs) |
| SENA | Smart Energy Network Alliance (Novell/Utilcorp/United) |