| Acronym | Definition |
|---|
| OSE | Osaka Securities Exchange |
| OSE | Oslo Stock Exchange (Norway) |
| OSE | Open Source Edition (software) |
| OSE | Office of the State Engineer (various locations) |
| OSE | Order of the Star in the East (India) |
| OSE | Observatoire Social Européen (French: European Social Observatory; Belgium) |
| OSE | Organize Search Engine |
| OSE | Operating System Embedded |
| OSE | Open Service Environment |
| OSE | Open System Event |
| OSE | Oma Service Environment |
| OSE | Office Server Extensions |
| OSE | Outside the Scope of the Expression |
| OSE | Open Source in the Enterprise |
| OSE | Open System in the Enterprise |
| OSE | Office Source Engine |
| OSE | Open Servlet Engine |
| OSE | Open Step Enterprise |
| OSE | Open Source Edition |
| OSE | Obras Sanitarias del Estado (Uruguay) |
| OSE | Operating System Environment |
| OSE | Office Server Extensions (Microsoft) |
| OSE | Open Systems Environment |
| OSE | Office of Student Employment (various locations) |
| OSE | Office of Structural Engineering (Ohio) |
| OSE | Open Security Exchange |
| OSE | Operating Supplies and Equipment (hospitality) |
| OSE | Oil Sands Exploration |
| OSE | Office of the State Employer (Michigan) |
| OSE | Organismós Sidirodrómon Elládos (Hellenic Railways Organisation) |
| OSE | Observing System Experiments |
| OSE | Other Social Effects (USACE) |
| OSE | On Scene Endurance (US DoD) |
| OSE | On-Site Environmental, Inc. (Puerto Rico) |
| OSE | Orbital Support Equipment |
| OSE | Officer Scheduling the Exercise |
| OSE | Owner Supplied Equipment |
| OSE | Open Servlet Engine (Websphere specific deployment characteristic) |
| OSE | Operational Support Equipment |
| OSE | Other Support Equipment |
| OSE | Operating System Executive |
| OSE | Office of Security Evaluation (US DOE) |
| OSE | Ocean Science and Engineering, Inc. |
| OSE | Office of Safety Engineering (US DOE) |
| OSE | Optical Switching Energy |
| OSE | Operation Support Equipment |
| OSE | Operational Security Evaluation |
| OSE | Other Specified Employee |
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