| 1981 | Kilvington Grammar School | Ormond | Chemistry | 3 |
| 1982 | Kilvington Grammar School | Ormond | History: Revolutions | 3 |
| 1983 | Kingswood College | Box Hill | IT Applications | 3 |
| 1984 | Kingswood College | Box Hill | Psychology | 3 |
| 1985 | Koonung Secondary College | Mont Albert North | Business Management | 3 |
| 1986 | Koonung Secondary College | Mont Albert North | English | 3 |
| 1987 | Korowa Anglican Girls School | Glen Iris | Art | 3 |
| 1988 | Korowa Anglican Girls School | Glen Iris | Business Management | 3 |
| 1989 | Korowa Anglican Girls School | Glen Iris | Health and Human Development | 3 |
| 1990 | Korowa Anglican Girls School | Glen Iris | Visual Communication Design | 3 |
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| 1991 | Korumburra Secondary College | Korumburra | Food and Technology | 3 |
| 1992 | Kyabram Secondary College | Kyabram | Health and Human Development | 3 |
| 1993 | Kyabram Secondary College | Kyabram | Legal Studies | 3 |
| 1994 | Lac Viet Vietnamese Language School | Hoppers Crossing | Languages: Vietnamese | 3 |
| 1995 | Lakeview Senior College | Caroline Springs | Biology | 3 |
| 1996 | Lakeview Senior College | Caroline Springs | English | 3 |
| 1997 | Lauriston Girls School | Armadale | Business Management | 3 |
| 1998 | Lauriston Girls School | Armadale | Literature | 3 |
| 1999 | Lauriston Girls School | Armadale | Theatre Studies | 3 |
| 2000 | Lauriston Girls School | Armadale | Visual Communication Design | 3 |
| 2001 | Leibler Yavneh College | Elsternwick | Biology | 3 |
| 2002 | Leibler Yavneh College | Elsternwick | Specialist Mathematics | 3 |
| 2003 | Lilydale High School | Lilydale | Media | 3 |
| 2004 | Loreto College | Ballarat | Design and Technology | 3 |
| 2005 | Loreto College | Ballarat | Further Mathematics | 3 |
| 2006 | Loreto Mandeville Hall | Toorak | Further Mathematics | 3 |
| 2007 | Loreto Mandeville Hall | Toorak | Physics | 3 |
| 2008 | Loreto Mandeville Hall | Toorak | Specialist Mathematics | 3 |
| 2009 | Lowther Hall Anglican Grammar School | Essendon | Business Management | 3 |
| 2010 | Lowther Hall Anglican Grammar School | Essendon | Food and Technology | 3 |
| 2011 | Lowther Hall Anglican Grammar School | Essendon | History: Revolutions | 3 |
| 2012 | Lowther Hall Anglican Grammar School | Essendon | Languages: Japanese Second Language | 3 |
| 2013 | Lowther Hall Anglican Grammar School | Essendon | Mathematical Methods (CAS) | 3 |
| 2014 | Loyola College | Watsonia | Studio Arts | 3 |
| 2015 | Loyola College | Watsonia | Visual Communication Design | 3 |
| 2016 | Luther College | Croydon Hills | Design and Technology | 3 |
| 2017 | Luther College | Croydon Hills | IT Applications | 3 |
| 2018 | Luther College | Croydon Hills | Specialist Mathematics | 3 |
| 2019 | Lyndale Secondary College | Dandenong North | Psychology | 3 |
| 2020 | MacKillop Catholic Regional College | Werribee | Business (VCE VET) | 3 |
| 2021 | MacKillop Catholic Regional College | Werribee | IT Applications | 3 |
| 2022 | MacKillop Catholic Regional College | Werribee | Physical Education | 3 |
| 2023 | Macleod College | Macleod | Biology | 3 |
| 2024 | Macleod College | Macleod | Physics | 3 |
| 2025 | Macrobertson Girls High School | Melbourne | History: Renaissance Italy | 3 |
| 2026 | Maffra Secondary College | Maffra | Design and Technology | 3 |
| 2027 | Manangatang P-12 College | Manangatang | Business Management | 3 |
| 2028 | Mansfield Secondary College | Mansfield | Health and Human Development | 3 |
| 2029 | Marcellin College | Bulleen | Mathematical Methods (CAS) | 3 |
| 2030 | Marcellin College | Bulleen | Physics | 3 |
Last Updated: 9 Sep 2023