RHS may refer to:
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 Rangeview High School, a public high school in Aurora, Colorado Reepham High School Redlands High School, a public high school in Redlands, California Redmond High School (Oregon) Redmond High School (Washington) Renaissance High School (disambiguation) Reno High School, a public high school serving the city of Reno, Nevada located in Washoe County. 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 Riverview High School (Riverview, Florida) Rizal High School, a public school in Pasig, Philippines Robbinsville High School (New Jersey) Robbinsville High School (North Carolina) Roosevelt High School (disambiguation) Rosepine High School
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 Rabbi Hershel Schachter, Rosh Yeshiva and Posek