RHS

RHS may stand for:

Education

United Kingdom

• Royal Hospital School, an independent naval school at Holbrook, Suffolk
• Royal Historical Society

United States

• Radnor High School, a public high school in Radnor, Pennsylvania
• Ralston High School
• Reepham High School
• Richmond High School (Richmond, California)
• Richmond Secondary School
• Ridgeline High School (Utah), a public high school in Millville, Utah
• Ridgeline High School (Washington), a public high school in Liberty Lake, Washington
• Robbinsville High School (New Jersey)
• Robbinsville High School (North Carolina)
• Roosevelt High School (disambiguation)

Other

• Ramsay Hunt syndrome, several medical conditions
• Rectangular hollow section, a type of metal profile
• Retired husband syndrome
• Revue d'histoire de la Shoah, an academic journal about the Holocaust (Shoah) published in France
• Right-hand side of an equation
• Royal Horticultural Society
• Rural Housing Service, in the USDA Rural Development Agency
• Right angle, hypotenuse and side, indicating a congruent triangle