OIEC
| Acronym | Definition |
|---|---|
| OIEC | Oil Industries Engineering and Construction Company |
| OIEC | Office of Injured Employee Counsel (Texas) |
| OIEC | Office International de l'Enseignement Catholique |
| OIEC | Office International de l'Enseignement Catholique (French: Catholic International Education Office) |
| OIEC | Oficina Internacional de Educación Católica (Spain) |
| OIEC | Oregon International Education Consortium |
| OIEC | Organisation Internationale des Etudiants Catholiques |
| OIEC | Overseas International Education Centres (Australia) |