| OSN | Ocean Science News | 海洋科学新闻 |
| OSN | organ-specific neoantigen | 器官特异性新抗原 |
| OSN | Operator Security Number | 操作员安全号码 |
| OSN | Orion Syndicate Network | Orion辛迪加网络 |
| OSN | Original Senshi Network | 原创森仕网络 |
| OSN | Online Scouting Network | 在线侦察网络 |
| OSN | Operand Segment Number | 操作数段编号 |
| OSN | operating system neutrality | 操作系统中立性 |
| OSN | Old Sinful Nature | 古老的罪恶本性 |
| OSN | Optical Service Network(s) (fiber optics) | 光纤服务网络(光纤) |
| OSN | Oregon Sports Network | 俄勒冈州体育网 |
| OSN | Oklahoma Sustainability Network (Oklahoma City, OK) | 俄克拉荷马州可持续发展网络(俄克拉何马市,OK) |
| OSN | Open Software Network | 开放软件网络 |
| OSN | Overlay Service Network | 覆盖服务网络 |
| OSN | On Sale Now | 正在销售中 |
| OSN | Open Studios Network (UK) | 开放工作室网络(英国) |
| OSN | Online Social Network | 在线社交网络 |
| OSN | Ocular Surgery News | 眼外科新闻 |
| OSN | Output Sub-Node | 输出子节点 |
| OSN | Office of the Secretary of the Navy | 海军部长办公室 |
| OSN | Optical Star Network | 光明星网络 |
| OSN | One Stop Notification | 一站式通知 |
| OSN | Obras Sanitarias de la NaciÓn (Argentina) | Obras Sanitarias de la NaciÓn (Argentina) |
| OSN | Operations Support Network (Ericsson) | 运营支持网络(爱立信) |
| OSN | On-demand Secure Network | 按需安全网络 |
| OSN | Organic Solvent Nanofiltration | 有机溶剂纳滤 |