SCHS

• Sabah Chinese High School
• San Clemente High School (Mayfield, New South Wales)
• San Clemente High School (San Clemente, California)
• Sandwich Class Housing Scheme
• Santa Clara High School (Oxnard, California)
• Santa Clara High School (Santa Clara, California)
• Santa Cruz High School
• Saudi Commission for Health Specialties
• School of Health Sciences, City University London
• Scott County High School
• Shadow Creek High School
• Sheldon Clark High School
• Shorecrest High School
• Snow Canyon High School (Utah)
• South Caldwell High School
• South Carleton High School
• South Carolina Historical Society
• South Carroll High School
• South Central High School (disambiguation)
• South Charnwood High School
• South Christian High School
• South Cobb High School
• South County High School (Fairfax County, Virginia)
• Springbank Community High School
• St. Charles Health System
• St. Charles High School (Minnesota)
• St. Clair High School (Missouri)
• St. Cloud High School
• Standish Community High School
• Steele Canyon High School
• Steinbach Christian School
• Stewarts Creek High School
• Stoney Creek High School
• Streatham and Clapham High School
• Sturgeon Composite High School
• Summer Creek High School
• Sussex Central High School (Delaware)
• Suzanne Cory High School