| 1976 | Carlingford High School | Carlingford | Japanese Continuers | 4 |
| 1977 | Caroline Chisholm College | Glenmore Park | Biology | 4 |
| 1978 | Caroline Chisholm College | Glenmore Park | Legal Studies | 4 |
| 1979 | Casimir Catholic College | Marrickville | Studies of Religion I | 4 |
| 1980 | Casimir Catholic College | Marrickville | Visual Arts | 4 |
| 1981 | Castle Hill High School | Castle Hill | English Extension 2 | 4 |
| 1982 | Castle Hill High School | Castle Hill | Japanese Beginners | 4 |
| 1983 | Castle Hill High School | Castle Hill | Modern History | 4 |
| 1984 | Castle Hill High School | Castle Hill | Personal Development, Health and Physical Education | 4 |
| 1985 | Catherine McAuley Westmead | Westmead | Economics | 4 |
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| 1986 | Catherine McAuley Westmead | Westmead | English Extension 2 | 4 |
| 1987 | Cecil Hills High School | Cecil Hills | Community and Family Studies | 4 |
| 1988 | Cecil Hills High School | Cecil Hills | Legal Studies | 4 |
| 1989 | Cecil Hills High School | Cecil Hills | Personal Development, Health and Physical Education | 4 |
| 1990 | Central Coast Adventist School | Erina | Music 1 | 4 |
| 1991 | Central Coast Grammar School | Erina Heights | Legal Studies | 4 |
| 1992 | Cerdon College | Merrylands | Economics | 4 |
| 1993 | Chatswood High School | Chatswood | Modern History | 4 |
| 1994 | Chatswood High School | Chatswood | Software Design and Development | 4 |
| 1995 | Cheltenham Girls High School | Beecroft | Drama | 4 |
| 1996 | Cherrybrook Technology High School | Cherrybrook | Food Technology | 4 |
| 1997 | Cherrybrook Technology High School | Cherrybrook | Japanese Beginners | 4 |
| 1998 | Cherrybrook Technology High School | Cherrybrook | Personal Development, Health and Physical Education | 4 |
| 1999 | Chester Hill High School | Chester Hill | Mathematics Extension 2 | 4 |
| 2000 | Chevalier College | Burradoo | English Extension 2 | 4 |
| 2001 | Chevalier College | Burradoo | Geography | 4 |
| 2002 | Chevalier College | Burradoo | History Extension | 4 |
| 2003 | Chevalier College | Burradoo | Senior Science | 4 |
| 2004 | Chifley College Bidwill Campus | Bidwill | Information Processes and Technology | 4 |
| 2005 | Christian Brothers High School Lewisham | Lewisham | Geography | 4 |
| 2006 | Christian Community High School | Regents Park | Studies of Religion II | 4 |
| 2007 | Coffs Harbour Christian Community School | Bonville | General Mathematics | 4 |
| 2008 | Coffs Harbour High School | Coffs Harbour | Visual Arts | 4 |
| 2009 | Coffs Harbour Senior College | Coffs Harbour | Business Studies | 4 |
| 2010 | Coffs Harbour Senior College | Coffs Harbour | History Extension | 4 |
| 2011 | Coffs Harbour Senior College | Coffs Harbour | Legal Studies | 4 |
| 2012 | Colo High School | North Richmond | Visual Arts | 4 |
| 2013 | Concord High School | Concord | Accounting | 4 |
| 2014 | Coonabarabran High School | Coonabarabran | Engineering Studies | 4 |
| 2015 | Covenant Christian School | Belrose | English (Advanced) | 4 |
| 2016 | Cranbrook School | Bellevue Hill | General Mathematics | 4 |
| 2017 | Cranbrook School | Bellevue Hill | German Continuers | 4 |
| 2018 | Cranbrook School | Bellevue Hill | German Extension | 4 |
| 2019 | Cranbrook School | Bellevue Hill | Latin Continuers | 4 |
| 2020 | Cranbrook School | Bellevue Hill | Latin Extension | 4 |
| 2021 | Cranbrook School | Bellevue Hill | Legal Studies | 4 |
| 2022 | Crestwood High School | Baulkham Hills | Ancient History | 4 |
| 2023 | Crestwood High School | Baulkham Hills | Mathematics | 4 |
| 2024 | Cronulla High School | Cronulla | Food Technology | 4 |
| 2025 | Cronulla High School | Cronulla | Legal Studies | 4 |
Source: NSW Education Standards Authority (NESA).
Supplementary data from school publications.
Supplementary data from school publications.
Last Updated: 5 Dec 2016