OSIP
| Acronym | Definition |
|---|---|
| OSIP | Open Source Integrated Portfolio |
| OSIP | Open Sip (session initiation protocol) |
| OSIP | Ohio Statewide Imagery Program |
| OSIP | Operational Safety Improvement Program |
| OSIP | Operational Suitability Improvement Program (aviation) |
| OSIP | Office of Sponsored International Programs (Office of the Vice President for Research; University of Alabama at Birmingham; Birmingham, AL) |