This report shows the 2009 top students in each HSC subject, along with their ranking as assigned by the NSW Education Standards Authority.
Rankings are calculated from student HSC marks in the subject, or, where this results in a tie, from the average of the students' examination and assessment marks.
Students must achieve a band 6 or band E4 result in the relevant subject to appear in this list.
The number of top achievers reported varies from 5 to 20, according to the number of candidates taking each subject.
| 1 | General Mathematics | Patrick, Julia | 1 | Roseville College | Roseville |
| 2 | General Mathematics | Stokes, Martina | 1 | Monte Sant Angelo Mercy College | North Sydney |
| 3 | General Mathematics | Zeitoune, Amani | 1 | Sule College Prestons | Prestons |
| 4 | General Mathematics | Barr, Andrew Peter | 4 | St Patricks College Strathfield | Strathfield |
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| 5 | General Mathematics | Comertpay, Nilay | 4 | Sule College Prestons | Prestons |
| 6 | General Mathematics | Doldissen, Hayley | 4 | Magdalene Catholic College | Narellan |
| 7 | General Mathematics | McGregor, Kristy Shannon | 4 | Camden High School | Camden |
| 8 | General Mathematics | McQuillan, Blake | 4 | Oxford Falls Grammar School | Oxford Falls |
| 9 | General Mathematics | Thomas, Heather Maria | 4 | Sydney Secondary College Blackwattle Bay Campus | Glebe |
| 10 | General Mathematics | Wheeler, Samuel Murray | 10 | St Andrews Cathedral School | Sydney |
| 11 | General Mathematics | Sims, Christina | 11 | Ravenswood School for Girls | Gordon |
| 12 | General Mathematics | Allworth, Charles Marcus | 12 | SHORE Sydney Church of England Grammar School | North Sydney |
| 13 | General Mathematics | Astle, Madeleine Kirsty | 12 | Toongabbie Christian College | Toongabbie |
| 14 | General Mathematics | Burnside, Mitchell Robert | 12 | Narooma High School | Narooma |
| 15 | General Mathematics | Dibella, Maree Kathryn | 12 | Maclean High School | Maclean |
| 16 | General Mathematics | Tenser, Alexander | 16 | Cherrybrook Technology High School | Cherrybrook |
| 17 | General Mathematics | Barzach, Hannah | 17 | SCEGGS Darlinghurst | Darlinghurst |
| 18 | General Mathematics | Coleman, Luke Adam | 17 | Chatswood High School | Chatswood |
| 19 | General Mathematics | Lenson, Ethan John | 17 | Erina High School | Erina |
| 20 | General Mathematics | Murphy, Kate | 17 | Presbyterian Ladies College Sydney | Croydon |
| 21 | General Mathematics | Rysenbry, Elliot Christopher | 17 | Northern Beaches Secondary College Freshwater Campus | Freshwater |