RHS

RHS may stand for:

United Kingdom

 * Royal Hospital School, an independent naval school at Holbrook, Suffolk

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