This report shows the 2019 top achievers in each HSC subject, along with their ranking as assigned by the NSW Education Standards Authority.
Students must achieve a band 6 or band E4 result in the relevant subject to appear in this list. 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.
The number of top achievers reported varies from 5 to 20, according to the number of candidates taking each subject.
| 1 | Aboriginal Studies | Harrison, Piper | 1 | Northern Beaches Secondary College Mackellar Girls Campus | Manly Vale |
| 2 | Aboriginal Studies | Briggs, Alexander | 2 | Cherrybrook Technology High School | Cherrybrook |
| 3 | Aboriginal Studies | Pellegrini, Lua | 3 | Loreto Normanhurst | Normanhurst |
| 4 | Aboriginal Studies | Aiello, Bianca Maria | 4 | Northern Beaches Secondary College Mackellar Girls Campus | Manly Vale |
| 5 | Aboriginal Studies | Donaldson, Tara Sindhe | 5 | Northern Beaches Secondary College Mackellar Girls Campus | Manly Vale |
| 6 | Agriculture | Hendriks Movig, Linn Charlotte | 1 | Barker College | Hornsby |
| 7 | Agriculture | Seis, Megan | 2 | Calrossy Anglican School | Tamworth |
| 8 | Agriculture | Hua, Claire Zhilin | 3 | James Ruse Agricultural High School | Carlingford |
| 9 | Agriculture | Salama, Joshua | 4 | James Ruse Agricultural High School | Carlingford |
| 10 | Agriculture | Colless, Teagan Joyce | 5 | Hurlstone Agricultural High School | Glenfield |
| 11 | Agriculture | Hickson, Amelia | 5 | Frensham School | Mittagong |
| 12 | Agriculture | Zhu, Henry | 7 | James Ruse Agricultural High School | Carlingford |
| 13 | Agriculture | Li, Grace | 8 | James Ruse Agricultural High School | Carlingford |
| 14 | Agriculture | Huang, Richard | 9 | James Ruse Agricultural High School | Carlingford |
| 15 | Agriculture | Dien, Sophie | 10 | James Ruse Agricultural High School | Carlingford |
| 16 | Ancient History | Stone, Mairead | 1 | Loreto Normanhurst | Normanhurst |
| 17 | Ancient History | Grimshaw, Dominic | 2 | Sydney Distance Education High School | Woolloomooloo |
| 18 | Ancient History | Jones, Madeline | 2 | Glen Innes High School | Glen Innes |
| 19 | Ancient History | Howard, Sophie Catherine | 4 | Loreto Kirribilli | Kirribilli |
| 20 | Ancient History | Penfold, Tristan | 5 | Cranbrook School | Bellevue Hill |
| 21 | Ancient History | Fleming, Hayden | 6 | The Scots College | Bellevue Hill |
| 22 | Ancient History | Bradley, Raquel | 7 | Pacific Hills Christian School | Dural |
| 23 | Ancient History | Warne, Anthea | 8 | Mt St Patrick College | Murwillumbah |
| 24 | Ancient History | Lembit, Nive Danae | 9 | Hurlstone Agricultural High School | Glenfield |
| 25 | Ancient History | Bell, Jaime Louisa | 10 | Pymble Ladies College | Pymble |