| Acronym | Definition |
|---|
| OMSB➣Oman Medical Speciality Board |
| OMSB➣Osaka Municipal Symphonic Band (Osaka, Japan) |
| OMSB➣Ohio-Manipal School of Business (India) |
| OMSB➣Owner-Managed Small Businesses (Canada) |
| OMSB➣Oregon Mutual Savings Bank (Portland, OR) |
| OMSB➣Oilserve Marine Sdn. Bhd. |