The National Schools Debating Championships (NSDC) are Australia's premier debating competition, coordinated by the Australian Debating Federation (ADF) and held every year in a different Australian capital. Tasmania has hosted the NSDC three times, most recently in 2012.
As the sole Tasmanian affiliate of the ADF, the Tasmanian Debating Union selects the state team from a series of selection events held around the state. Tasmania has fielded a team in most Championships, and has won the Championships once, in 1980, and been Runner-Up twice.
| Annwen Roberts | Elizabeth College | Team member |
| Gypsy Polacheck | St Michael's Collegiate | Team member |
| Harry Tunks | Elizabeth College | Team member |
| Maighn Johnson | Elizabeth College | Team member |
| Charlie Pilkington | New Town High School | Reserve |
| Mackenna Minstrell | Taroona High School | Reserve |
| Kelly Stone | Coach |
NSDC 2019 was held in Darwin.
| Bryher McKeown | Hobart College | Team member |
| Harry Tunks | Elizabeth College | Team member |
| Maighn Johnson | Elizabeth College | Team member |
| Kelly Stone | Elizabeth College | Team member |
| Annwen Roberts | Elizabeth College | Reserve |
| Gypsy Polacheck | St Michael's Collegiate | Reserve |
| Finlay McKeown | Coach |
|
| Isabella Jackson | Coach |
|
| Kathryn Ellis | Official adjudicator |
NSDC 2018 was held in Perth.
| Bryher McKeown | Hobart College | Team member |
| Isabella Jackson | The Friends' School | Team member |
| Isobel Kuo | St Mary's College | Team member |
| Koh Kawaguchi | The Hutchins School | Team member |
| Harry Tunks | New Town High School | Reserve |
| Rose Hensher | St Michael's Collegiate | Reserve |
| Kathryn Ellis | Coach |
NSDC 2017 was held in Brisbane.
| Finlay McKeown | Hobart College | Team member |
| Freya Cox | The Friends' School | Team member |
| Isabella Jackson | The Friends' School | Team member |
| Sam Watson | The Friends' School | Team member |
| Bryher McKeown | Taroona High School | Reserve |
| James Barnes | Coach |
|
| Kathryn Ellis | Official adjudicator |
NSDC 2016 was held in Sydney.
| Ben Lienert | The Friends' School | Team member |
| Jessie Horder-Geraghty | St Michael's Collegiate | Team member |
| Johanna Ellis | Elizabeth College | Team member |
| Vivian Imbriotis | The Friends' School | Team member |
| Anni Zhang | Elizabeth College | Reserve |
| Finlay McKeown | Hobart College | Reserve |
| Mitchell Woolley | Elizabeth College | Reserve |
| Kathryn Ellis | Coach |
|
| Peter Legg | Official adjudicator |
|
| Imogen Wurf | Co-manager |
|
| Katie Parrott | Co-manager |
NSDC 2015 was held in Adelaide.
| Ben Lienert | The Friends' School | Team member |
| James Barnes | Hobart College | Team member |
| Jessie Horder-Geraghty | St Michael's Collegiate | Team member |
| Johanna Ellis | Elizabeth College | Team member |
| Kathryn Ellis | Coach |
|
| Michael Cordover | Official adjudicator |
|
| Imogen Wurf | Manager |
NSDC 2014 was held in Melbourne.
| Eli Cropp | Elizabeth College | Team member |
| Imogen Wurf | St Michael's Collegiate | Team member |
| Johanna Ellis | Ogilvie High School | Team member |
| Peter Legg | Elizabeth College | Team member |
| Jessie Horder-Geraghty | Launceston Church Grammar School | Reserve |
| Kathryn Ellis | Coach |
|
| Michael Cordover | Official adjudicator |
NSDC 2013 was held in Canberra.
| Imogen Wurf | St Michael's Collegiate | Team member |
| Jessie Horder-Geraghty | Launceston Church Grammar School | Team member |
| Kathryn Ellis | Elizabeth College | Team member |
| Peter Legg | Elizabeth College | Team member |
| Michael Cordover | Coach |
|
| Pat McConville | Official adjudicator |
|
| Rhiannon McMahon | Manager |
NSDC 2012 was held in Hobart.
| Kathryn Ellis | Elizabeth College | Team member |
| Peter Legg | New Town High School | Team member |
| Rhiannon McMahon | Elizabeth College | Team captain |
| Samuel Smeele | The Hutchins School | Team member |
| Michael Cordover | Convenor |
|
| Pat McConville | Chief adjudicator |
|
| Simon Monk | Coach |
|
| Mel Ross | Manager |
NSDC 2011 was held in Perth.
| Katie Parrott | Hobart College | Team member |
| Maegan Boundey | Elizabeth College | Team member |
| Martika Palmer | Scotch Oakburn College | Team member |
| Rhiannon McMahon | Hobart College | Team member |
| Pat McConville | Coach |
|
| Michael Cordover | Official adjudicator |
|
| Mel Ross | Manager |
NSDC 2010 was held in Brisbane.
| Clare Armstrong | Launceston Church Grammar School | Team member |
| Harry Woods | Launceston Church Grammar School | Team member |
| Tom Marshall | The Friends' School | Team member |
| Tom Whiteley | The Hutchins School | Team member |
| Mel Ross | Coach |
|
| Michael Cordover | Official adjudicator |
NSDC 2009 was held in Adelaide. Tasmania did not send a team to this competition.
NSDC 2008 was held in Sydney.
| Ian Meyer | The Hutchins School | Team member |
| Jo Hudson | Hobart College | Team member |
| Liam Carswell | Elizabeth College | Team member |
| Mel Ross | Elizabeth College | Team member |
| Frances Bevan | Official adjudicator |
|
| Michael Cordover | Adjudicator |
|
| Alex Moores | Manager |
NSDC 2007 was held in Melbourne.
| Alex Moores | Elizabeth College | Team member |
| Django Merope-Synge | Elizabeth College | Team member |
| Jo White | Guilford Young College | Team member |
| Niall Maurici | Hobart College | Team member |
| Pat McConville | Coach |
|
| Simon Monk | Coach |
|
| Frances Bevan | Official adjudicator |
|
| Michael Cordover | Adjudicator |
NSDC 2006 was held in Darwin.
| Alex Moores | Elizabeth College | Team member |
| Eliza Forsyth | Launceston Church Grammar School | Team member |
| Gideon Cordover | The Friends' School | Team member |
| Nicky Vreugdenhil | Scotch Oakburn College | Team member |
| Pat McConville | Coach |
|
| Simon Monk | Coach |
|
| Frances Bevan | Official adjudicator |
|
| Michael Cordover | Adjudicator |
NSDC 2005 was held in Hobart.
| Andrew Carolan | The Hutchins School | Team member |
| Eliza Forsyth | Launceston Church Grammar School | Team member |
| James Walker | Elizabeth College | Team member |
| Theo Wadsley | The Friends' School | Team member |
| Lionel Nichols | Chief adjudicator |
|
| Stephen Monk | Coach |
NSDC 2004 was held in Perth.
| Aidan Morrison | Launceston Church Grammar School | Team member |
| Loren Atkins | Launceston Church Grammar School | Team member |
| Pat McConville | Hobart College | Team member |
| Sienna Merope | Elizabeth College | Team member |
| Andrew Gregson | Coach |
|
| Stephen Monk | Official adjudicator |
|
| Frances Bevan | Shadow adjudicator |
|
| Simon Monk | Manager |
NSDC 2003 was held in Brisbane.
| Aidan Morrison | Launceston Church Grammar School | Team member |
| Frances Bevan | Elizabeth College | Team member |
| Pat McConville | Hobart College | Team member |
| Simon Monk | Elizabeth College | Team member |
| Bruce Fairfax | Coach |
|
| Stephen Monk | Coach |
|
| Tim Sinclair | Coach |