This report shows the 2012 top student in each HSC subject as awarded 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.
This report is equivalent to the Subject Top Achievers report after applying the filter "Rank equals 1".
| 1 | Aboriginal Studies | Graham, Alexandra Rose | Cheltenham Girls High School | Beecroft |
| 2 | Accounting | Bishop, George | Sydney Institute Petersham College | Petersham |
| 3 | Agriculture | Tan, Christine | Pymble Ladies College | Pymble |
| 4 | Ancient History | Bell, Curtis Andrew | Knox Grammar School | Wahroonga |
| 5 | Arabic Continuers | El Zein, Yesser | Wiley Park Girls High School | Punchbowl |
| 6 | Arabic Extension | El Zein, Yesser | Wiley Park Girls High School | Punchbowl |
| 7 | Armenian Continuers | Sariyan, Shoushan | Saturday School of Comm. Lang. Chatswood High School | Chatswood |
| 8 | Automotive Examination | Miller, Matthew Shane | Northern Sydney Institute Hornsby College | Hornsby |
| 9 | Biology | Mason, Timothy Declan | Barker College | Hornsby |
| 10 | Business Services Examination | Gill, Scott William | Yanco Agricultural High School | Yanco |
| 11 | Business Services Examination | Yu, Lik Wong | Blakehurst High School | Blakehurst |
| 12 | Business Studies | Liu, Nicole | Ryde Secondary College | Ryde |
| 13 | Chemistry | Ma, Jason Cheuk Ting | Baulkham Hills High School | Baulkham Hills |
| 14 | Chinese Background Speakers | Wang, Ye (Edison) | Saturday School of Comm. Lang. Strathfield Girls High School | Strathfield |
| 15 | Chinese Beginners | Leong, Gwen Taine | Tempe High School | Tempe |
| 16 | Chinese Continuers | Kelly, Kevin | Canberra Grammar School | Red Hill |
| 17 | Chinese Continuers | White, Eoin Andrew | Canberra Grammar School | Red Hill |
| 18 | Chinese Extension | Saw, Mercy | NSW School of Languages | Randwick |
| 19 | Classical Greek Continuers | Chiam, Christopher James | Sydney Boys High School | Surry Hills |
| 20 | Classical Greek Extension | Knapman, Grant Keith | Trinity Grammar School | Summer Hill |
| 21 | Classical Hebrew Continuers | Charak, Sarah | Kesser Torah College | Dover Heights |
| 22 | Classical Hebrew Extension | Charak, Sarah | Kesser Torah College | Dover Heights |
| 23 | Community and Family Studies | Eltakchi, Sarah-Jane | Our Lady of Mercy College Parramatta | Parramatta |
| 24 | Construction Examination | Bowen, Zachary | St John Bosco College | Engadine |
| 25 | Croatian Continuers | Ljilja, Demi | Saturday School of Comm. Lang. Liverpool Boys High School | Liverpool |