| Acronym | Definition |
|---|
| SMHS | School of Medicine & Health Sciences (various schools) |
| SMHS | Stone Memorial High School (Crossville, TN) |
| SMHS | Shri Maharaja Hari Singh (est. 1948; hospital, India) |
| SMHS | San Marcos High School (California) |
| SMHS | Secondary Mental Health Services |
| SMHS | San Mateo High School |
| SMHS | Santa Margarita Catholic High School (California) |
| SMHS | St. Mary's High School |
| SMHS | San Marino High School (California) |
| SMHS | Specialist Mental Health Service (various locations) |
| SMHS | Smartphone Mobile Hotspot (T-Mobile) |
| SMHS | Santa Margarita High School (California) |
| SMHS | Sisters of Mercy Health System |
| SMHS | Sunrise Mountain High School (Peoria, Arizona) |
| SMHS | Smoky Mountain High School (Sylva, North Carolina) |
| SMHS | Starr's Mill High School |
| SMHS | Stone Mountain High School (Stone Mountain, GA) |
| SMHS | South Mecklenburg High School (Charlotte, NC) |
| SMHS | Sierra Military Health Services, Inc. |
| SMHS | Slater Mill Historic Site (Pawtucket, RI) |
| SMHS | Smoky Mountain Historical Society |
| SMHS | Student Mental Health Service(s) |
| SMHS | Stun Master Hot Shot |
| SMHS | San Marcos High School, San Marcos, TX) |