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- Oaks Park High School (CU-0189580)
- Oasis Academy Brightstowe (CU-0004406)
- Oasis Academy Daventry Road (CU-0195072)
- Oasis Academy John Williams (CU-0004405)
- Oasis Academy Temple Quarter (CU-0195073)
- Orchard Meadow Primary School (CU-0188869)
- Ormiston Chadwick Academy (CU-0002563)
- Ormiston Victory Academy (CU-0004429)
- Our Lady Queen of Peace (CU-0004379)
- Overton Grange School (CU-0004393)
- The Oxford Academy (CU-0004421)