Redwood High School is a public secondary school located in the city of Larkspur, Marin County, California, approximately 11 miles north of San Francisco. Redwood High is part of the Tamalpais Union High School District (TUHSD). The school serves the cities of Belvedere, Corte Madera, Greenbrae, Kentfield, Larkspur, Ross, and Tiburon. The school houses the TUHSD headquarters.