| 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) |