| Acronym | Definition |
|---|
| OTHS➣O'Fallon Township High School (O'Fallon, Illinois) |
| OTHS➣Oakland Technical High School (Oakland, CA) |
| OTHS➣Oakville Trafalgar High School (Oakville, Ontario, Canada) |
| OTHS➣Osgoode Township Historical Society and Museum (Canada; also seen as OTHS&M) |
| OTHS➣Olde Towne Hobby Shoppe (Manassas, VA) |
| OTHS➣Office of Traffic and Highway Safety (Idaho) |
| OTHS➣Olde Thyme Herb Society (Michigan) |