| Acronym | Definition |
|---|
| WMHS | Western Maryland Health System |
| WMHS | West Monroe High School (West Monroe, LA) |
| WMHS | Ward Melville High School (East Setauket, NY) |
| WMHS | West Mesa High School (Albuquerque, NM) |
| WMHS | William Monroe High School (Stanardsville, VA) |
| WMHS | Wayne Memorial High School (Michigan) |
| WMHS | Wisconsin Marine Historical Society (Milwaukee, WI) |
| WMHS | Woburn Memorial High School (Massachusetts) |
| WMHS | West Mesquite High School (Mesquite, TX) |
| WMHS | Watkins Memorial High School (Pataskala, OH) |
| WMHS | World Mental Health Survey (Assessment, Classification, and Epidemiology Group) |
| WMHS | Warren Mott High School (Warren, MI) |
| WMHS | Wilson Memorial High School (Fishersville, VA) |
| WMHS | West Muskingum High School (Zanesville, OH) |
| WMHS | West Morgan High School (Trinity, AL) |
| WMHS | Wilmington Middle High School (Wilmington, VT) |
| WMHS | Weston McEwen High School (Athena, OR) |
| WMHS | World Methodist Historical Society (Madison, NJ) |
| WMHS | Wildwood Middle High School (Florida) |
| WMHS | Wildwing Model Horse Stables (est. 1976) |
| WMHS | Western Military Historical Society (reenactment association) |
| WMHS | West Morris High School (Califon, New Jersey) |
| WMHS | Washakie Mental Health Services (Wyoming) |
| WMHS | Website Management and Hosting Service |