Ottawa Carlton E-School
Ottawa Christian School
Ottawa Crescent Public School
Ottawa Islamic School
Ottawa Technical Learning Center
Ottawa Torah Institute
Ottawa-Carleton Glashan Public School
Otterville Public School
Ottewell Junior High School
Ottewell School
Oulton's College
Our Lady Help Of Christians
Our Lady Immaculate School
Our Lady Of Annunciation
Our Lady Of Assumption
Our Lady of Fatima
Our Lady Of Fatima School
Our Lady Of Fatima School
Our Lady of Fatima School (K-6)
Our Lady Of Good Counsel School