Canyon High School started in 1973 as a shared campus with the established Villa Park High School for students in grades 10-12. Upon completion of the Anaheim Hills campus, a variety of names were considered for the site. A ballot of three proposed names was given to the future students of Canyon High School to vote on who attended Vista Del Rio Jr. and Peralta Junior High Schools. The students did not like any of the choices so a write in campaign was started. Canyon High School was the name of choice due to its location and the fact that the local students call that area "The Canyon".
In the spring of 1973, future students selected the Comanche as their mascot. Comanche are an off-shoot of the mountain Shoshoni tribe—the introduction of horses to the Great Plains allowed populations to settle in new locations. Comanche are regarded as expert horse handlers and high-spirited people.
First Principal: Louis Joseph
First Musical Production Lead Singer: Elizabeth Gilmore
First Concert: “Shuffle”
First Queen: Teri Liegler
First King: Matt Baumann
First Mascot: Dee Mecke
First Football Head Coach: Chuck Wood
First Boys Basketball Head Coach: Bob Schermerhorn
First Wrestling Coach: Gary Bowden (Canyon Hall of Fame)