Amphitheater High School, also known as Amphi High, is a public high school, located in northwest Tucson, Arizona, United States. Amphi is the flagship high school of Amphitheater Public Schools of Tucson, and serves grades 9–12. The school mascot is the panther, and the school colors are kelly green and white. Amphi opened in 1939 as the second high school in Tucson, and has a student enrollment of 1,249. In the 1983–84 school year, it was honored as a Blue Ribbon school.