| Onchan Primary School |
| Ongar Place Infant School |
| Onny CE Primary School |
| Onslow Infant School |
| Onthank Primary & Gaelic Nursery School |
| Orangefield Primary School |
| Oratory RC Junior/Infant School |
| Oratory RC Primary School |
| Orchard CE Primary School |
| Orchard Head Junior and Infant School |
| Orchard Infant School |
| Orchard Lea Infant School |
| Orchard Lea Junior School |
| Orchard Meadow First School |
| Orchard Primary & Nursery School |
| Orchard Primary School |
| Orchard Primary School |
| Orchard Vale Community School |
| Orchard Way Primary School |
| Orchards Community Infant School |
| Ordiquhill Primary School |
| Ordsall Junior School |
| Ordsall Village Infant School |
| Oreston Community Primary School |
| Orford CE (A) Primary School |
| Orgill Primary School |
| Oriel Junior Infant and Nursery School |
| Orielton Primary School |
| Orleans Infant and Nursery School |
| Orleton CE Primary School |
| Orleton Lane Infant School |
| Ormesby First School |
| Ormesby Primary School |
| Ormiston Primary School |
| Ormsgill Primary School |
| Ormskirk CE Primary School |
| Ormskirk St. Annes' Catholic Primary School |
| Orphir Community School |
| Orphir Community School |
| Orrell Lamberhead Green Primary School |
| Orrell Newfold Primary School |
| Orrell Primary School |
| Orrishmere Primary School |
| Orritor Primary School |
| Orsett CE Primary School |
| Orston Primary School |
| Orton CE Primary School |
| Orton Wistow Primary School |
| Ortonbrook Primary School |
| Orwell Junior School |
| Orwell Primary School |