SMHS is a four-letter abbreviation that may refer to:
San Marin High School San Marino High School South Miami High School San Marcos High School (disambiguation), multiple schools San Mateo High School Santa Margarita Catholic High School (also abbreviated SMCHS) Santa Maria High School Santa Monica High School Scecina Memorial High School Shadow Mountain High School Smoky Mountain High School South Medford High School South Mecklenburg High School South Milwaukee High School South Mountain High School Spruce Mountain High School St. Mark Catholic High School (Ottawa) Saint Michael Academy (Catarman) St. Michael's High School (New Mexico, USA) Stone Mountain High School Sunrise Mountain High School Spring Mills High School SMHS Hospital at Srinagar