| 1851 | Thomas Hassall Anglican College | Middleton Grange | General Mathematics | Marcic, Milan |
| 1852 | Thomas Hassall Anglican College | Middleton Grange | General Mathematics | Zappia, Domenic |
| 1853 | Tomaree High School | Salamander Bay | General Mathematics | Filipek, Jacqueline |
| 1854 | Toongabbie Christian College | Toongabbie | General Mathematics | McCarthy, Danielle |
| 1855 | Toongabbie Christian College | Toongabbie | General Mathematics | Skiller, Jesse |
| 1856 | Trinity Catholic College Auburn Campus | Auburn | General Mathematics | Francis, Jacob |
| 1857 | Trinity Catholic College Auburn Campus | Auburn | General Mathematics | Nahas, Patrick |
| 1858 | Trinity Catholic College Goulburn | Goulburn | General Mathematics | Anable, Simon Christopher |
| 1859 | Trinity Catholic College Goulburn | Goulburn | General Mathematics | Downes, Rachel Amy |
| 1860 | Trinity Catholic College Lismore | Lismore | General Mathematics | Bell, Francesca |
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| 1861 | Trinity Grammar School | Summer Hill | General Mathematics | Ali-Khan, Benjamin Kamran |
| 1862 | Trinity Grammar School | Summer Hill | General Mathematics | Curran, Zachary Michael |
| 1863 | Trinity Grammar School | Summer Hill | General Mathematics | Magro, David Patrick |
| 1864 | Trinity Grammar School | Summer Hill | General Mathematics | Sestakov, Oliver |
| 1865 | Tuggerah Lakes Secondary College The Entrance Campus | Shelly Beach | General Mathematics | Jelley, Ryan Patrick |
| 1866 | Turramurra High School | South Turramurra | General Mathematics | Carswell, Hannah |
| 1867 | Turramurra High School | South Turramurra | General Mathematics | Davis, Ashleigh |
| 1868 | Turramurra High School | South Turramurra | General Mathematics | Hercus, Tahlia |
| 1869 | Turramurra High School | South Turramurra | General Mathematics | Host, Christine |
| 1870 | Turramurra High School | South Turramurra | General Mathematics | MacDonald, James |
| 1871 | Turramurra High School | South Turramurra | General Mathematics | Sharp, Megan |
| 1872 | Turramurra High School | South Turramurra | General Mathematics | Young, Alec |
| 1873 | Tyndale Christian School | Blacktown | General Mathematics | Adams, Nathan |
| 1874 | Vincentia High School | Vincentia | General Mathematics | Dries, Lewis |
| 1875 | Wagga Wagga High School | Wagga Wagga | General Mathematics | Biggin, Zachariah David |
| 1876 | Wagga Wagga High School | Wagga Wagga | General Mathematics | Finemore, Meghan Jennifer |
| 1877 | Wagga Wagga High School | Wagga Wagga | General Mathematics | Qayyum, Zareen |
| 1878 | Warialda High School | Warialda | General Mathematics | Beattie, Logan |
| 1879 | Warilla High School | Barrack Heights | General Mathematics | Cleary, Melissa Leigh |
| 1880 | Warilla High School | Barrack Heights | General Mathematics | Edwards, Mitchell David |
| 1881 | Warilla High School | Barrack Heights | General Mathematics | Moulton, Aleida Melissa |
| 1882 | Warners Bay High School | Warners Bay | General Mathematics | Lange-Smith, Ty Michael |
| 1883 | Warners Bay High School | Warners Bay | General Mathematics | Thorn, Brittany Eve |
| 1884 | Waverley College | Waverley | General Mathematics | Corry, Patrick |
| 1885 | Waverley College | Waverley | General Mathematics | Duffy, Thomas |
| 1886 | Waverley College | Waverley | General Mathematics | Gan, Benjamin |
| 1887 | Waverley College | Waverley | General Mathematics | Heeney, Barton |
| 1888 | Waverley College | Waverley | General Mathematics | Johansson, Haydn |
| 1889 | Waverley College | Waverley | General Mathematics | Moloney, Conor |
| 1890 | Waverley College | Waverley | General Mathematics | Murphy, Darby |
| 1891 | Waverley College | Waverley | General Mathematics | O'Connor, Thomas |
| 1892 | Waverley College | Waverley | General Mathematics | Schattner, Ben |
| 1893 | Waverley College | Waverley | General Mathematics | Winch, Harry |
| 1894 | Wellington High School | Wellington | General Mathematics | Cosier, Georgia Meg |
| 1895 | Wenona School | North Sydney | General Mathematics | Carter, Emily |
| 1896 | Wenona School | North Sydney | General Mathematics | Coutts, Isabella |
| 1897 | Wenona School | North Sydney | General Mathematics | Goodin, Lucy |
| 1898 | Wenona School | North Sydney | General Mathematics | Herbert, Victoria |
| 1899 | Wenona School | North Sydney | General Mathematics | Hogg, Rachael |
| 1900 | Wenona School | North Sydney | General Mathematics | Larkins, Harriett |
Source: NSW Education Standards Authority (NESA).
Supplementary data from school publications.
Supplementary data from school publications.
Last Updated: 14 Feb 2023