OTHS
| 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) |