Semiahmoo Secondary School (/ˌsɛmiˈɑːmoʊ/ SEM-ee-AH-moh) is a public high school in South Surrey, British Columbia, and is part of School District 36 Surrey. Founded in 1940 as the first senior secondary school in South Surrey, Semiahmoo spans grades eight through twelve. The school currently has a student population of around 1700 and a faculty of 96, and is headed by Bal Ranu. Semiahmoo is one of three public high schools on the peninsula, along with Earl Marriot Secondary School towards the border crossing, and Elgin Park Secondary School towards Ocean Park.