| Acronym | Definition |
|---|
| RCHS | Roman Catholic High School (various locations) |
| RCHS | Rock Canyon High School (Castle Rock, CO) |
| RCHS | Raleigh Charter High School (North Carolina) |
| RCHS | Randolph County Humane Society (Elkins, WV) |
| RCHS | Robbinsdale Cooper High School (Minnesota) |
| RCHS | Rancho Cucamonga High School (Califirnia) |
| RCHS | Richmond County Historical Society (North Carolina) |
| RCHS | Roane County High School (Kingston, TN and Spencer, WV) |
| RCHS | Rushville Consolidated High School (Rushville, Indiana, USA) |
| RCHS | Rockbridge County High School (Maryland) |
| RCHS | Roseau County Historical Society (Roseau, MN) |
| RCHS | Richland Center High School (Richland Center, WI) |
| RCHS | Richland Collegiate High School (Dallas, TX) |
| RCHS | Richmond Community High School (Richmond, Virginia) |
| RCHS | Reproductive and Child Health Services Programme (Tanzania) |