| School Name | Suburb | Level | Score 40+ | Median Score | Destinations | Total Students |
|---|---|---|---|---|---|---|
| Oak Park Primary School, Oak Park VIC Government Coeducational School | Oak Park | Primary | - | - | - | |
| Oakleigh Grammar, Oakleigh VIC Independent ELC-12 Coeducational School | Oakleigh | Combined | 6% | 31 | 46% to University 52% to TAFE 2% to Work | 515 |
| Oakleigh Primary School, Oakleigh VIC Government Coeducational School | Oakleigh | Primary | - | - | - | |
| Oakleigh South Primary School, Oakleigh South VIC Government Coeducational School | Oakleigh South | Primary | - | - | - | |
| Oatlands Primary School, Narre Warren VIC Government Coeducational School | Narre Warren | Primary | - | - | - | |
| Oberon High School, Belmont VIC Government 7-12 Coeducational , Homestay School | Belmont | Secondary | 2% | 29 | 45% to University 20% to TAFE 30% to Work | 1400 |
| Oberon Primary School, Belmont VIC Government Coeducational School | Belmont | Primary | - | - | - | |
| Oberon South Primary School, Belmont VIC Government Coeducational School | Belmont | Primary | - | - | - | |
| Ocean Grove Primary School, Ocean Grove VIC Government Coeducational School | Ocean Grove | Primary | - | - | - | |
| Officer Primary School, Officer VIC Government Coeducational School | Officer | Primary | - | - | - | |
| Old Orchard Primary School, Blackburn North VIC Government Coeducational School | Blackburn North | Primary | - | - | - | |
| Olinda Primary School, Olinda VIC Government Coeducational School | Olinda | Primary | - | - | - | |
| Olivet Christian College, Campbells Creek VIC Independent P-10 Coeducational School | Campbells Creek | Combined | - | - | 88 | |
| Omeo Primary School, Omeo VIC Government Coeducational School | Omeo | Primary | - | - | - | |
| Orbost North Primary School, Orbost VIC Government Coeducational School | Orbost | Primary | - | - | - | |
| Orbost Primary School, Orbost VIC Government Coeducational School | Orbost | Primary | - | - | - | |
| Orbost Secondary College, Orbost VIC Government 7-12 Coeducational School | Orbost | Secondary | 2% | 27 | 34% to University 40% to TAFE 26% to Work | 291 |
| Orchard Grove Primary School, Blackburn South VIC Government Coeducational School | Blackburn South | Primary | - | - | - | |
| Ormond Primary School, Ormond VIC Government Coeducational School | Ormond | Primary | - | - | - | |
| Orrvale Primary School, Orrvale VIC Government Coeducational School | Orrvale | Primary | - | - | - | |
| Osborne Primary School, Mount Martha VIC Government Coeducational School | Mount Martha | Primary | - | - | - | |
| Osbornes Flat Primary School, Osbornes Flat VIC Government Coeducational School | Osbornes Flat | Primary | - | - | - | |
| Our Holy Redeemer School, Surrey Hills VIC Catholic Coeducational School | Surrey Hills | Primary | - | - | - | |
| Our Lady Help of Christians School, Brunswick East VIC Catholic Coeducational School | Brunswick East | Primary | - | - | - | |
| Our Lady Help of Christians School, Eltham VIC Catholic Coeducational School | Eltham | Primary | - | - | - | |
| Our Lady Help of Christians School, Murtoa VIC Catholic Coeducational School | Murtoa | Primary | - | - | - | |
| Our Lady Help of Christians School, Warrnambool East VIC | Warrnambool East | Primary | - | - | - | |
| Our Lady Help of Christians School, Wendouree VIC Catholic Coeducational School | Wendouree | Primary | - | - | - | |
| Our Lady of Fatima School, Rosebud VIC Catholic Coeducational School | Rosebud | Primary | - | - | - | |
| Our Lady of Good Counsel School, Deepdene VIC Catholic Coeducational School | Deepdene | Primary | - | - | - | |
| Our Lady of Lourdes School, Bayswater VIC Catholic Coeducational School | Bayswater | Primary | - | - | - | |
| Our Lady of Lourdes School, Prahran East VIC Catholic Coeducational School | Prahran East | Primary | - | - | - | |
| Our Lady of Mercy College, Heidelberg VIC Catholic 7-12 Female School | Heidelberg | Secondary | 15% | 34 | 88% to University 19% to TAFE | 1100 |
| Our Lady of Mount Carmel School, Sunbury VIC Catholic Coeducational School | Sunbury | Primary | - | - | - | |
| Our Lady of Perpetual Help School, Ringwood VIC Catholic Coeducational School | Ringwood | Primary | - | - | - | |
| Our Lady of Perpetual Succour School, Surrey Hills VIC Catholic Coeducational School | Surrey Hills | Primary | - | - | - | |
| Our Lady of Sion College, Box Hill VIC Catholic 7-12 Female School | Box Hill | Secondary | 13% | 33 | 80% to University 20% to TAFE | 780 |
| Our Lady of the Assumption School, Cheltenham VIC Catholic Coeducational School | Cheltenham | Primary | - | - | - | |
| Our Lady of the Immaculate Conception School, Sunshine VIC Catholic Coeducational School | Sunshine | Primary | - | - | - | |
| Our Lady of the Nativity School, Aberfeldie VIC Catholic Coeducational School | Aberfeldie | Primary | - | - | - | |
| Our Lady of the Pines School, Donvale VIC Catholic Coeducational School | Donvale | Primary | - | - | - | |
| Our Lady of the Rosary, Kyneton VIC Catholic Coeducational School | Kyneton | Primary | - | - | - | |
| Our Lady of the Sacred Heart College, Bentleigh VIC Catholic 7-12 Female School | Bentleigh | Secondary | 8% | 32 | 94% to University 4% to TAFE 2% to Work | 670 |
| Our Lady of the Sacred Heart Primary, Elmore VIC Catholic Coeducational School | Elmore | Primary | - | - | - | |
| Our Lady of the Sacred Heart School, Merbein VIC Catholic Coeducational School | Merbein | Primary | - | - | - | |
| Our Lady of the Southern Cross St Andrew's Archdiocese of Melbourne, Wyndham Vale VIC | Wyndham Vale | Primary | - | - | - | |
| Our Lady of the Way School, Kingsbury VIC Catholic Coeducational School | Kingsbury | Primary | - | - | - | |
| Our Lady of Victories School, Camberwell VIC Catholic Coeducational School | Camberwell | Primary | - | - | - | |
| Our Lady Star of the Sea School, Ocean Grove VIC Catholic Coeducational School | Ocean Grove | Primary | - | - | - | |
| Our Lady's School, Craigieburn VIC Catholic Coeducational School | Craigieburn | Primary | - | - | - |