| Acronym | Definition |
|---|
| OCSN➣Official College Sports Network |
| OCSN➣Optical Communication Systems and Networks (conference) |
| OCSN➣Online Computer Service Network |
| OCSN➣Officer Candidate Seaman (US Navy Baccalaureate Degree Completion Program) |
| OCSN➣One Cuckoo Short of a Nest (Australian blog) |