| O'Bannon, Jonathan Anderson | 
SHORE - Sydney Church of England Grammar School | 
 15020, 15110, 15140, 15240, 15250, 15270 | 
| O'Brien, Adam | 
MacKillop Senior College | 
 15230 | 
| O'Brien, Anna | 
Tangara School for Girls | 
 15190, 15680 | 
| O'Brien, Danielle Marie | 
Meriden School | 
 15040, 15110 | 
| O'Brien, Elena Rose | 
Gosford High School | 
 15180 | 
| O'Brien, Emma | 
MacKillop College | 
 15340 | 
| O'Brien, Erin Margaret | 
Merewether High School | 
 15040, 15140, 15160, 15180, 15350, 15370, 16845 | 
| O'Brien, Jack Daniel | 
All Saints College (St Mary's Campus) | 
 15320 | 
| O'Brien, Jack Edward | 
St Mary's College | 
 15020 | 
| O'Brien, Jack Samuel | 
Model Farms High School Baulkham Hills | 
 15230 | 
| O'Brien, Meagan | 
Brigidine College St Ives | 
 15230 | 
| O'Brien, Rebecca | 
Moruya High School | 
 15240 | 
| O'Brien, Rosie | 
Brigidine College St Ives | 
 15230, 15320, 15380 | 
| O'Brien, Simon John | 
All Saints College (St Mary's Campus) | 
 15050, 15140, 15160, 15240, 15250, 15380 | 
| O'Brien, Tenika | 
MacKillop Senior College | 
 15030, 15090, 15140, 15240, 15320, 15380 | 
| O'Brien, Thomas | 
Smith's Hill High School | 
 15050, 15250, 15260, 15330, 15360 | 
| O'Brien, Thomas | 
Tamworth Anglican College | 
 15010, 15020, 15270 | 
| O'Brien, Vanessa | 
Brigidine College St Ives | 
 15140 | 
| O'Callaghan, Kate | 
St Francis De Sales Regional College | 
 15090, 15170, 15230, 15290 | 
| O'Callaghan, Michael | 
St Aloysius College | 
 15110 | 
| O'Connell, Blake Patrick | 
Marcellin College | 
 15230 | 
| O'Connell, Derek John | 
Albury High School | 
 15360 | 
| O'Connell, Miles Lindsay | 
Trinity Catholic College Goulburn | 
 15240, 15250, 15300, 15310 | 
| O'Connell, Nicholas | 
Menai High School | 
 15200 | 
| O'Connell, Rory | 
Waverley College | 
 15110, 15250, 15330 | 
| O'Connor, Eamon | 
International Grammar School | 
 15140, 15280 | 
| O'Connor, Emma | 
Brigidine College Randwick | 
 15060, 15320 | 
| O'Connor, Jasmin Maxine | 
Baulkham Hills High School | 
 15110 | 
| O'Connor, Jason Barry | 
Murray High School | 
 15050, 15250, 15330 | 
| O'Connor, Jessica | 
Xavier Catholic College | 
 15140, 15370, 15400 | 
| O'Connor, Katherine Louise | 
Merewether High School | 
 15040 | 
| O'Connor, Rechell Ami | 
Mullumbimby High School | 
 15060 | 
| O'Connor, Ryan | 
Marist College Kogarah | 
 15230, 15340 | 
| O'Connor, Simon Eric | 
Knox Grammar School | 
 15140, 15220, 15250, 15260, 15270 | 
| O'Connor, Thomas Edward | 
Hunter Institute - Newcastle Campus | 
 15220, 15240, 15380 | 
| O'Connor, Thomas Patrick | 
The Armidale School | 
 15040, 15220, 15230 | 
| O'Connor, Zachary | 
Edmund Rice College | 
 15320 | 
| O'Connor-Davis, Liam | 
St Mary's Cathedral College | 
 15360 | 
| O'Dell, Melanie Louise | 
Westport High School | 
 15060 | 
| O'Doherty, Roisin | 
Presbyterian Ladies College Sydney | 
 15140, 15400 | 
| O'Donnell, Alexandra | 
The Illawarra Grammar School | 
 15040, 15140, 15160 | 
| O'Donnell, Jonathan | 
Sydney Grammar School | 
 15050, 15140, 15240, 15330 |