O.E. Dunckel Middle School
O.J. Dejonge Middle School
O.W. Holmes Elementary-middle School
Oak Arbor Church School
Oak Hollow Christian School
Oak Manor Sixth Grade Center
Oak Park High School
Oak Park Preparatory Academy
Oak Ridge Elementary School
Oak Valley Middle School
Oakbrook Elementary School
Oakdale Christian School
Oakland Academy
Oakland Children's Academy
Oakland Christan School
Oakland Christian School
Oakland Community College
Oakland Early College
Oakland Elementary School
Oakland International Academy - Elementary