This report shows the 2020 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 | Aboriginal Studies | Conway, Jaida | 1 | Alexandria Park Community School | Alexandria |
| 2 | Aboriginal Studies | Hair, Jasmine | 2 | St John The Evangelist Catholic High School | Nowra |
| 3 | Aboriginal Studies | Anderson, Jordan | 3 | Pittwater High School | Mona Vale |
| 4 | Aboriginal Studies | Bertoli, Annunziata Anna | 4 | International Grammar School | Ultimo |
| 5 | Aboriginal Studies | Lenehan Choo, Olive | 5 | Sydney Distance Education High School | Woolloomooloo |
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| 6 | Agriculture | Guo, Junlin | 1 | James Ruse Agricultural High School | Carlingford |
| 7 | Agriculture | Liu, Jason | 1 | James Ruse Agricultural High School | Carlingford |
| 8 | Agriculture | Carungay, Abigail Bennett | 3 | James Ruse Agricultural High School | Carlingford |
| 9 | Agriculture | Newman, Anna | 3 | James Ruse Agricultural High School | Carlingford |
| 10 | Agriculture | Rimceski, Isabella | 5 | Hurlstone Agricultural High School | Glenfield |
| 11 | Agriculture | Oldham, Georgie | 6 | Barker College | Hornsby |
| 12 | Agriculture | Lim, Pei Ling | 7 | James Ruse Agricultural High School | Carlingford |
| 13 | Agriculture | Sawyer, Natalie | 8 | Barker College | Hornsby |
| 14 | Agriculture | Phae, Yeon Woo | 9 | James Ruse Agricultural High School | Carlingford |
| 15 | Agriculture | Backhouse, Elizabeth | 10 | Pymble Ladies College | Pymble |
| 16 | Ancient History | Ball, Genevieve Sylvia | 1 | Merewether High School | Broadmeadow |
| 17 | Ancient History | Nason, Lily | 2 | Kambala | Rose Bay |
| 18 | Ancient History | Bentley, Harrison | 3 | St Josephs College Hunters Hill | Hunters Hill |
| 19 | Ancient History | Kairaitis, Charlie | 4 | MLC School | Burwood |
| 20 | Ancient History | Nogueira, Sabrina | 5 | Pymble Ladies College | Pymble |
| 21 | Ancient History | Thurgood, Lara | 5 | Sydney Girls High School | Surry Hills |
| 22 | Ancient History | Heydon, Aaron | 7 | Sydney Grammar School | Darlinghurst |
| 23 | Ancient History | Hoare, Emily | 7 | Tara Anglican School for Girls | North Parramatta |
| 24 | Ancient History | Khor, Jessica | 7 | Girraween High School | Girraween |
| 25 | Ancient History | Egger, Emily | 10 | Whitebridge High School | Whitebridge |