La Costa Canyon High School (LCC) is a public high school located in Carlsbad, California. Established in 1996, it is a member of the San Dieguito Union High School District and serves the communities of Encinitas, south Carlsbad, Leucadia, Olivenhain, and Cardiff. La Costa Canyon is the only school in the district to offer the International Baccalaureate diploma programme. Justin Conn has been principal of La Costa Canyon High School since July 2022.