The Marmonte League is a high school athletic conference in California affiliated with the CIF Southern Section (CIF-SS).
[8] However, in early 2021, Grace Brethren suspended its football program and left the association; St. Bonaventure took its place in the top-tier Marmonte League.
[12] In 2011, the CIF-SS and the Marmonte League denied Derrick "Deejay" Brown a hardship transfer request that would have allowed him to play basketball at Thousand Oaks High School.
[14] On January 5, 2012, the CIF-SS required Westlake's varsity boys' basketball team to forfeit a win over Agoura.
[15] Plans to revamp the entire Northern Area of the CIF Southern Section, which includes the Marmonte League, were in place for 2014.