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.
| 451 | Information and Digital Technology Examination | Thin, Myint Zu | 2 | Burwood Girls High School | Croydon |
| 452 | Information and Digital Technology Examination | Wong, Alyssa | 4 | Brigidine College St Ives | St Ives |
| 453 | Information and Digital Technology Examination | Huang, Haydn | 5 | TAFE Digital | Ultimo |
| 454 | Information Processes and Technology | Mavila, Ravi | 1 | North Sydney Boys High School | Crows Nest |
| 455 | Information Processes and Technology | Somanchi, Venkata | 2 | North Sydney Boys High School | Crows Nest |
| 456 | Information Processes and Technology | Leung, Tiffany | 3 | Casimir Catholic College | Marrickville |
| 457 | Information Processes and Technology | Zheng, Zhong Hao | 4 | North Sydney Boys High School | Crows Nest |
| 458 | Information Processes and Technology | Chan, Joshua | 5 | North Sydney Boys High School | Crows Nest |
| 459 | Information Processes and Technology | Grover, Arnav | 5 | North Sydney Boys High School | Crows Nest |
| 460 | Information Processes and Technology | Hebbar, Surabhi | 7 | Blacktown Girls High School | Blacktown |
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| 461 | Information Processes and Technology | Phoenix, Trinity Amber | 8 | Lakes Grammar An Anglican School | Warnervale |
| 462 | Information Processes and Technology | Ahmad, Ihsan | 9 | North Sydney Boys High School | Crows Nest |
| 463 | Information Processes and Technology | Weaver, Emily | 9 | SCEGGS Darlinghurst | Darlinghurst |
| 464 | Investigating Science | Bhatia, Moksh | 1 | Hurlstone Agricultural High School | Glenfield |
| 465 | Investigating Science | McNally, Bodhi Joel | 1 | Gosford High School | Gosford |
| 466 | Investigating Science | Hong, Anna | 3 | Pymble Ladies College | Pymble |
| 467 | Investigating Science | Hourn, Michael | 4 | Grafton High School | Grafton |
| 468 | Investigating Science | Ye, Liyu | 4 | Canley Vale High School | Canley Vale |
| 469 | Investigating Science | Chaudhry, Hibba Aqeel | 6 | Bankstown Girls High School | Bankstown |
| 470 | Investigating Science | Davies, Caitlyn | 6 | Galston High School | Galston |
| 471 | Investigating Science | Visakesvaran, Pavithran Sai | 6 | Patrician Brothers College Blacktown | Blacktown |
| 472 | Investigating Science | Koster, Ella | 9 | Pymble Ladies College | Pymble |
| 473 | Investigating Science | Morris, Emily May | 9 | Gosford High School | Gosford |
| 474 | Italian Beginners | Macaraeg, Brent | 1 | Patrician Brothers College Fairfield | Fairfield |
| 475 | Italian Beginners | Everett, Abigail | 2 | NSW School of Languages | Petersham |
| 476 | Italian Beginners | Neill, Maddison | 3 | St Vincents College | Potts Point |
| 477 | Italian Beginners | Igual, Marcus | 4 | Freeman Catholic College | Bonnyrigg Heights |
| 478 | Italian Beginners | Vuletic, Sara | 5 | Blakehurst High School | Blakehurst |
| 479 | Italian Continuers | Landfear, Riley | 1 | Sydney Grammar School | Darlinghurst |
| 480 | Italian Continuers | Leonard, Loredana | 2 | Santa Sabina College | Strathfield |
| 481 | Italian Continuers | Prasan, Akshay | 3 | Sydney Grammar School | Darlinghurst |
| 482 | Italian Continuers | Thompson, Phoebe | 4 | Monte Sant Angelo Mercy College | North Sydney |
| 483 | Italian Continuers | Morris, Alexander | 5 | Sydney Grammar School | Darlinghurst |
| 484 | Italian Extension | Landfear, Riley | 1 | Sydney Grammar School | Darlinghurst |
| 485 | Italian Extension | Pacini, Ludovica | 2 | NSW School of Languages | Petersham |
| 486 | Italian Extension | Milazzo, Alessandra | 3 | Rosebank College | Five Dock |
| 487 | Italian Extension | Thompson, Phoebe | 4 | Monte Sant Angelo Mercy College | North Sydney |
| 488 | Italian Extension | Prasan, Akshay | 5 | Sydney Grammar School | Darlinghurst |
| 489 | Japanese and Literature | Kunita, Akane | 1 | Secondary College of Languages Chatswood Campus | Chatswood |
| 490 | Japanese Beginners | Zheng, Minxi | 1 | Meriden School | Strathfield |
| 491 | Japanese Beginners | Huynh, Ruth Ngan Thien | 2 | Meriden School | Strathfield |
| 492 | Japanese Beginners | Ng, Jo Ee | 3 | Cherrybrook Technology High School | Cherrybrook |
| 493 | Japanese Beginners | Kuang, Karina Xichun | 4 | Willoughby Girls High School | Willoughby |
| 494 | Japanese Beginners | Bhate, Raima | 5 | Chatswood High School | Chatswood |
| 495 | Japanese Beginners | Quang, Kayla | 5 | Burwood Girls High School | Croydon |
| 496 | Japanese Continuers | Kang, Patrick Seungjun | 1 | Normanhurst Boys High School | Normanhurst |
| 497 | Japanese Continuers | Ahluwalia, Arya | 2 | Baulkham Hills High School | Baulkham Hills |
| 498 | Japanese Continuers | Zhao, Chen | 3 | Baulkham Hills High School | Baulkham Hills |
| 499 | Japanese Continuers | Sheridan, Mia | 4 | Roseville College | Roseville |
| 500 | Japanese Continuers | Airey, Alysha | 5 | Northern Beaches Secondary College Manly Campus | North Curl Curl |