O'melveny Elementary
Oak Avenue Intermediate
Oak Hills Elementary
Oak Knoll Alternative
Oak Knoll Kinderhaus Montessori School-lake Ave
Oak Meadow School
Oak Mesa Elementary
Oak Street Elementary
Oak Tree Community Day
Oakmont Elementary
Oaktree Preschool
Oakwood Academy
Oakwood Academy Preschool & Kindergarten
Oakwood Secondary School
Occidental College
Ocean Charter School
Ocean View Elementary
Ocotillo Elementary
Odyssey Charter
Odyssey Continuation