This report shows the 2013 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 | Lin, Karen Jiaying | 1 | Hornsby Girls High School | Hornsby |
| 2 | General Mathematics | Rabie, Steven | 1 | Masada College | St Ives |
| 3 | General Mathematics | Stratton, Caitlin | 1 | Corpus Christi Catholic High School | Oak Flats |
| 4 | General Mathematics | Woods, Laura | 4 | De La Salle Catholic College Cronulla | Cronulla |
| 5 | General Mathematics | Brown, Sophie Elizabeth Julia | 5 | Loreto Normanhurst | Normanhurst |
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| 6 | General Mathematics | Burley, Georgia Mary-Alice | 6 | Hornsby Girls High School | Hornsby |
| 7 | General Mathematics | Goodin, Lucy | 6 | Wenona School | North Sydney |
| 8 | General Mathematics | Carter, Emily | 8 | Wenona School | North Sydney |
| 9 | General Mathematics | Dean, Mohammed Abdullah | 9 | Green Valley Islamic College | Green Valley |
| 10 | General Mathematics | Fieldus, Madison | 9 | Barker College | Hornsby |
| 11 | General Mathematics | Riley, Marcus Edward | 9 | SHORE Sydney Church of England Grammar School | North Sydney |
| 12 | General Mathematics | Robinson, Cassandra | 9 | St Ursulas College | Kingsgrove |
| 13 | General Mathematics | Scully, Brianna | 9 | Arndell Anglican College | Oakville |
| 14 | General Mathematics | Waga, Romina | 9 | Good Samaritan Catholic College | Hinchinbrook |
| 15 | General Mathematics | Stead, Leon Samuel | 15 | Meadowbank Education Trust School | Sydney Olympic Park |
| 16 | General Mathematics | Borich, Jye David | 16 | Sefton High School | Sefton |
| 17 | General Mathematics | Exton, Rebekah | 17 | Northern Beaches Christian School | Terrey Hills |
| 18 | General Mathematics | Saab, Claudia | 18 | Georges River College Oatley Senior Campus | Oatley |
| 19 | General Mathematics | Burrows, Lachlan | 19 | Tempe High School | Tempe |
| 20 | General Mathematics | Codsi, Isabella | 19 | Loreto Normanhurst | Normanhurst |
| 21 | General Mathematics | Fornasier, Johnathan | 19 | St Leos Catholic College | Wahroonga |
| 22 | General Mathematics | Heath, William Edward | 19 | SHORE Sydney Church of England Grammar School | North Sydney |
| 23 | General Mathematics | Marshall, Jay Matthew | 19 | Hurlstone Agricultural High School | Glenfield |
| 24 | General Mathematics | Small, Cassandra | 19 | Carinya Christian School Tamworth | Tamworth |
| 25 | General Mathematics | Wittenoom Louw, Alexandra May | 19 | Loreto Kirribilli | Kirribilli |