OBSI
| Acronym | Definition |
|---|---|
| OBSI | Ombudsman for Banking Services and Investments (Canada) |
| OBSI | On-Board Sound Intensity (tire/pavement noise measurements) |
| OBSI | Optimal Birth Spacing Interval (family planning) |
| OBSI | Objective Business Services Inc (Thornhill, Ontario, Canada) |
| OBSI | Open Business Solutions India Private Ltd |
| OBSI | Off-Balance Sheet Instrument (banking/finance) |