OSSN
| Acronym | Definition |
|---|---|
| OSSN | Outside Sales Support Network |
| OSSN | Open Source Software Network (Thailand) |
| OSSN | Ocular Surface Squamous Neoplasia |
| OSSN | Open Source Service Network |
| OSSN | Originating Station Serial/Sequence Number |
| OSSN | Operations Services Support Network |
| OSSN | Operational Support System Network |