RHHS may refer to:
- Randolph-Henry High School, Charlotte Court House, Virginia
- Ribston Hall High School, Gloucestershire, UK
- Richmond Hill High School (disambiguation), several schools
- Richmond Hill High School (Georgia), in Richmond Hill
- Richmond Hill High School (Ontario), in Richmond Hill
- Richmond Hill High School (Queens), in New York
- Ridgeland-Hardeeville High School
- River Hill High School, Clarksville, Maryland
- Rockwall Heath High School, Heath, Texas
- Rock Hill High School (disambiguation), several schools
- Rock Hill High School, Ohio
- Rock Hill High School, Rock Hill, South Carolina
- Rocky Hill High School, Rocky Hill, Connecticut