California Schools
- Oakland School For The Arts
- Oakland Technical High School
- Oakland Unified School District
- Oakley Union Elementary School District
- Oakmont High School
- Oaks Christian School
- Oakwood School
- Occidental College
- Ocean View Christian Academy
- Ocean View Elementary School District
- Ocean View High School
- Ocean View Hills School
- Ocean View School District
- Oceana High School
- Oceanside High School
- Oceanside Unified School District
- Odyssey School
- Ohlone College
- Oikos University
- Ojai Valley School
- Ola Grimsby Institute
- Old Adobe Union School District
- Old Mill School
- Olinda Elementary
- Olive Grove Elementary School
- Oliver Wendell Holmes Junior High School
- Olivet University
- Olympian High School
- Ontario High School
- Ontario Montclair School District
- Operaworks
- Options Secondary School
- Orange Coast College
- Orange County Business College
- Orange County Department Of Education
- Orange Glen High School
- Orange High School
- Orange Lutheran High School
- Orange Unified School District
- Orchard Elementary School District
- Orcutt Union School District
- Orfalea College Of Business
- Orinda Academy
- Orinda Union School District
- Orion Academy
- Orland High School
- Oro Grande Elementary School District
- Orosi High School
- Oroville City Elementary School District
- Oroville High School
- Oroville Union High School District
- Otay Ranch High School
- Otis College Of Art And Design
- Our Lady Queen Of Angels Seminary
- Our Lady Of The Desert School
- Oxbow School
- Oxford Academy
- Oxnard College
- Oxnard Elementary School District
- Oxnard High School
- Oxnard Union High School District
- Puc Schools
- Pacheco High School
- Pacheco Union School District
- Pacific Coast High School
- Pacific Coast University
- Pacific College Of Oriental Medicine
- Pacific Collegiate School
- Pacific Elementary School District
- Pacific Grove High School
- Pacific Grove Unified School District
- Pacific High School
- Pacific High School
- Pacific High School
- Pacific Lutheran High School
- Pacific Lutheran Theological Seminary
- Pacific Oaks College
- Pacific Ridge School
- Pacific School District
- Pacific School Of Religion
- Pacific States University
- Pacific Unified School District
- Pacific Union College
- Pacific Union School District
- Pacifica Christian High School
- Pacifica Graduate Institute
- Pacifica High School
- Pacifica High School
- Pacifica School District
- Paddle Method
- Pajaro Valley Unified School District
- Palermo Union School District
- Palisades Charter Elementary School
- Palisades Charter High School
- Palm Desert High School
- Palm Desert Middle School
- Palm Springs High School
- Palm Springs Unified School District
- Palma High School
- Palmdale High School