Emil R. Buchser High School was a comprehensive, coeducational public high school in Santa Clara, California, United States that served students in grades nine through twelve. It opened in 1957 as the Santa Clara Union High School District's second high school, and it closed in 1981 due to declining enrollment. The campus was repurposed as Santa Clara High School's new location, and Buchser Junior High School was established at Santa Clara High's old location.