| Acronym | Definition |
|---|
| OSY➣Out-of-School Youth (various locations) |
| OSY➣Offshore Switch Yard |
| OSY➣Ounces Per Square Yard (fabric weight) |
| OSY➣Optimum Sustainable Yield (fisheries) |
| OSY➣Out-of-School Youth Program (Department of Youth & Community Development; New York, NY) |
| OSY➣Oshima Shipyard (Oshima Shipbuilding Co., Ltd.; Japan) |