Found 9 full forms for OIU
| Term | Full Form | Category |
|---|---|---|
| OIU | Office Interface Unit 
| Others |
| OIU | Ohio Investigative Unit
| Others |
| OIU | Okinawa International University
| Others |
| OIU | Old Ignatians' Union
| Others |
| OIU | Omdurman Islamic University
| Others |
| OIU | Operator Interface Unit
| Others |
| OIU | Optical Interface Unit
| Others |
| OIU | Optical Internal Urethrotomy
| Others |
| OIU | Orbiter Intercommunications Unit
| Others |