Fillmore High School, referred to as Fillmore High or FHS, is a public four-year high school serving grades 9-12 in Fillmore, California that opened in 1909. It is one of two high schools in the Fillmore Unified School District (the other being Sierra High School) that serve the students of Fillmore as well as those of Piru, California. Fillmore High Schools offers twelve Advanced Placement classes and twelve sports.