Upper St. Clair High School (USCHS) is a public secondary school in Upper St. Clair, Pennsylvania and the sole high school within the township's namesake school district. Serving students in grades 9–12, USCHS is one of three secondary schools in Pennsylvania to be recognized as a Blue Ribbon School three times. According to state test scores, 92% of students are at least proficient in math and 91% in reading.