| Oraham, Domarina |
Mary MacKillop College |
15040, 15240, 15250 |
| Oram, Amy Louise |
East Hills Girls Technology High School |
15390 |
| Ordonez, Marcela |
Mount St Benedict College Pennant Hills |
16080 |
| Orekondy, Vinayak |
Sydney Grammar School |
15050, 15240, 15250, 15270, 15280, 15900, 15910 |
| Oringo, Alfred |
Penrith High School |
15330 |
| Ormiston, Claire Elizabeth |
Killara High School |
15230 |
| Ormsby, Clayton |
St Joseph's College Hunters Hill |
15370, 15400 |
| Orr, Anita Eunice |
Parkes High School |
16485 |
| Orr, Lachlan James |
Corowa High School |
15120 |
| Osborne, Claire |
Kiama High School |
15000, 15040 |
| Osborne, Sally Hanna |
Newtown High School of the Performing Arts |
15040, 15140, 15210, 15300 |
| Osland, Anna Isabelle |
Hunter School of the Performing Arts |
15000, 15090, 15170 |
| Ostrovsky, Edward |
Vaucluse High School |
15250 |
| Ott, Christina Marielle |
Pymble Ladies' College |
15790 |
| Otten, Angela Isobel |
Cheltenham Girls' High School |
15790 |
| Otter, Catherine |
Our Lady of Mercy College Parramatta |
15370 |
| Ottignon, Julia |
Newtown High School of the Performing Arts |
15090 |
| Ou, Zhanhua |
Asquith Girls High School |
15250 |
| Oudri, Marisa Delia |
Manly Selective Campus |
15240 |
| Outerbridge, Sarah Jane |
Casino High School |
15020 |
| Outtrim, Karin Lee |
Newcastle Grammar School |
15190, 15270 |
| Owen, Alexander Michael |
Cranbrook School |
15240, 15250, 15330 |
| Owen, Andrew |
Turramurra High School |
15250 |
| Owen, David James |
Hunter School of the Performing Arts |
15290 |
| Owens, Clare |
Bethany College |
15370 |
| Oxby, David Anthony |
Gulgong High School |
15240, 15250 |
| Oxenham, Kim |
St Ignatius' College |
15230 |
| Oxford, Adrian |
Blue Mountains Grammar School |
15120 |
| Oxtoby, Simon Dale |
Kyogle High School |
15080, 15240 |
| Ozbek, Volkan |
Ashfield Boys High School |
15110, 15140, 15240, 15330 |
| Ozturk, Ali Osman |
Wollongong High School of the Performing Arts |
16120 |
| Ozyurt, Baris Deniz |
South Sydney High School Maroubra |
16120 |
NSW Government