Oakville-Trafalgar Secondary School
Oakwood Collegiate Institute
Oakwood Elementary School
Oakwood Public School
Oasis Alternative Secondary School
Oblates de Béthanie
Occupational Preparation Program (C E C)
Ocdsb Westwind Ps
Oceanside Middle School
Oceanside Montessori School
Oceanview Elementary School
Oceanview Middle School
Ochre River School
Odessa School
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Ogden Elementary School
Ogden Jr Public School
Ogema School