| OSCI | Open SystemC Initiative | 开放系统C倡议 |
| OSCI | Ohio Science Institute | 俄亥俄科学研究所 |
| OSCI | One Stroke Certified Instructor | 一杆式认证教练 |
| OSCI | Oral Sciences | 口腔科学 |
| OSCI | Office for Social Concern and Involvement | 社会关注和参与办公室 |
| OSCI | Omaha Soaring Club, Inc. | 奥马哈飞翔俱乐部。 |
| OSCI | Owner Supplied Contractor Installed (building construction) | 业主提供的承包商安装(建筑施工) |
| OSCI | Online Services Computer Interface | 联机服务计算机界面 |
| OSCI | Onderwijs, Sociale zaken, Cultuur en Integratie | Onderwijs、Sociale zaken、Cultuur en Integrate |
| OSCI | Oregon State Correctional Institution | 俄勒冈州惩教所 |
| OSCI | Octal Serial Communication Interface | 八路串行通信接口 |
| OSCI | Oscient Pharmaceuticals Corp. (stock symbol) | 奥斯康制药公司(股票代码) |
| OSCI | Oberon System and Compiler Implementations | Oberon系统和编译器实现 |
| OSCI | OrganizaciÓn Simpatizante de la IV Internacional | OrganizaciÓn Simpatizante de la IV Internacional |
| OSCI | Oberon System and Compiler Implementation | Oberon系统与编译器实现 |
| OSCI | Office of Service and Continuous Improvement | 服务和持续改进办公室 |
| OSCI | Ordinary Sales Company, Inc. | 普通销售公司。 |