This report shows the 2021 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.
| 551 | Legal Studies | Thapa, Gaurav Singh | 9 | The Kings School | North Parramatta |
| 552 | Legal Studies | Targett, Ruby Rose | 10 | St Philips Christian College Newcastle | Waratah |
| 553 | Legal Studies | Ure, Elisabeth | 11 | Brigidine College Randwick | Randwick |
| 554 | Legal Studies | Vernicos, Olivia | 12 | William Clarke College | Kellyville |
| 555 | Legal Studies | Huang, Jeremy Hao | 13 | Knox Grammar School | Wahroonga |
| 556 | Legal Studies | Sharma, Aditya | 14 | Girraween High School | Girraween |
| 557 | Legal Studies | Li, Minrui | 15 | North Sydney Girls High School | Crows Nest |
| 558 | Legal Studies | Jenkins, Andrew Samuel | 16 | Knox Grammar School | Wahroonga |
| 559 | Legal Studies | Wells, Imogen | 17 | Wenona School | North Sydney |
| 560 | Legal Studies | Collings, Taylor | 18 | Turramurra High School | South Turramurra |
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| 561 | Legal Studies | Wardle, Lucia | 19 | Wenona School | North Sydney |
| 562 | Legal Studies | Cassar, Niamh | 20 | Northholm Grammar School | Arcadia |
| 563 | Macedonian Continuers | Petreska, Teona | 1 | Secondary College of Languages Bankstown Girls Campus | Bankstown |
| 564 | Macedonian Continuers | Ristevska, Angela | 2 | Secondary College of Languages Bankstown Girls Campus | Bankstown |
| 565 | Macedonian Continuers | Shopova, Violeta | 3 | Secondary College of Languages Kogarah Campus | Kogarah |
| 566 | Mathematics Advanced | Ahmed, Sarfaraz Syed | 1 | Sydney Boys High School | Moore Park |
| 567 | Mathematics Advanced | Colla, Lydia Mae | 1 | Loreto Kirribilli | Kirribilli |
| 568 | Mathematics Advanced | Harris, Lachlan | 1 | Cranbrook School | Bellevue Hill |
| 569 | Mathematics Advanced | Huang, Gordon | 1 | Fort Street High School | Petersham |
| 570 | Mathematics Advanced | Kuang, Karina Xichun | 1 | Willoughby Girls High School | Willoughby |
| 571 | Mathematics Advanced | Leo, Max David | 1 | St Pius X College | Chatswood |
| 572 | Mathematics Advanced | Wang, Kevin | 1 | The Kings School | North Parramatta |
| 573 | Mathematics Advanced | Wang, Zhongyu | 1 | Macquarie Grammar School | Sydney |
| 574 | Mathematics Advanced | Choong, Thomas | 9 | The Scots College | Bellevue Hill |
| 575 | Mathematics Advanced | Mehta, Rayan | 9 | St Aloysius College | Milsons Point |
| 576 | Mathematics Advanced | Brutto, Luke | 11 | Holy Cross College | Ryde |
| 577 | Mathematics Advanced | Swaraj, Milan | 12 | Sydney Grammar School | Darlinghurst |
| 578 | Mathematics Advanced | Amarasekara, Edirimuni | 13 | Oakhill College | Castle Hill |
| 579 | Mathematics Advanced | Xia, Andy Ziqi | 14 | Sydney Boys High School | Moore Park |
| 580 | Mathematics Advanced | Ma, Jiali | 15 | Sefton High School | Sefton |
| 581 | Mathematics Advanced | Tolentino, Christian Clarence | 15 | Sefton High School | Sefton |
| 582 | Mathematics Advanced | Alam, Mark Antony | 17 | St Patricks Marist College | Dundas |
| 583 | Mathematics Advanced | Chen, Kelly | 17 | Sydney Girls High School | Surry Hills |
| 584 | Mathematics Advanced | Dann, Steven Joseph | 17 | St Patricks College Strathfield | Strathfield |
| 585 | Mathematics Advanced | de Paulis, Marco | 17 | Ku-ring-gai High School | North Turramurra |
| 586 | Mathematics Advanced | Jin, Chelsea Ting Ru | 17 | Meriden School | Strathfield |
| 587 | Mathematics Advanced | Marinovich, Samuel | 17 | St Lukes Grammar School | Dee Why |
| 588 | Mathematics Advanced | Milton-White, Liam | 17 | Oakhill College | Castle Hill |
| 589 | Mathematics Advanced | Paton, Mayling Natalie Vera | 17 | Kambala | Rose Bay |
| 590 | Mathematics Advanced | Saxena, Mansh | 17 | Marist College Eastwood | Eastwood |
| 591 | Mathematics Advanced | Shah, Sohum | 17 | Normanhurst Boys High School | Normanhurst |
| 592 | Mathematics Advanced | Silcock, Olivia | 17 | William Clarke College | Kellyville |
| 593 | Mathematics Advanced | Soliman, Maria | 17 | Bethlehem College | Ashfield |
| 594 | Mathematics Advanced | Wu, Tony Yuzheng | 17 | Killara High School | Killara |
| 595 | Mathematics Advanced | Zafar, Ibrahim | 17 | Al-Faisal College | Auburn |
| 596 | Mathematics Extension 1 | Daoud, Philo | 1 | St Marks Coptic Orthodox College | Wattle Grove |
| 597 | Mathematics Extension 1 | Zheng, Hanyang | 1 | Sydney Boys High School | Moore Park |
| 598 | Mathematics Extension 1 | Wang, Reid | 3 | James Ruse Agricultural High School | Carlingford |
| 599 | Mathematics Extension 1 | Xu, Derek | 4 | Sydney Grammar School | Darlinghurst |
| 600 | Mathematics Extension 1 | Pham, Ai Thu | 5 | Bonnyrigg High School | Bonnyrigg |