| Acronym | Definition |
|---|
| PRHS➣Paso Robles High School (California) |
| PRHS➣Pine Ridge High School (Pine Ridge, South Dakota) |
| PRHS➣Palmetto Ridge High School (Naples, FL) |
| PRHS➣Pearl River High School |
| PRHS➣Peachtree Ridge High School |
| PRHS➣Pentucket Regional High School (West Newbury, MA) |
| PRHS➣Plymouth Regional High School |
| PRHS➣Port Richmond High School (Staten Island, NY) |
| PRHS➣Pine-Richland High School (Gibsonia, PA) |
| PRHS➣Pinelands Regional High School (Tuckerton, NJ) |
| PRHS➣Pine River High School |
| PRHS➣Palawan Resort Hotel Systems, Inc. (Philippines) |
| PRHS➣Peter Rabbit Home School (New Mexico) |
| PRHS➣Point Reyes Headland South (California) |