By-election and supplementary election results

If a Lower House seat becomes vacant, we hold either a by-election or a supplementary election to elect a new member of Parliament for that district.

Find out more about by-elections and supplementary elections.

Browse results below for by-elections and supplementary elections held from 2006 to present. If you require results for older elections, contacts us.

Results

  • 2025
    Date Election
    Saturday 8 February Prahran District by-election 
    Saturday 8 February Werribee District by-election 
  • 2023
    Date Election
    18 November Mulgrave District by-election 
    26 August Warrandyte District by-election
    28 January Narracan District supplementary election
  • 2017
    Date Election
    18 November Northcote District by-election
  • 2015
    Date Election
    31 October Polwarth District by-election
    31 October South-West Coast District by-election 
    14 March Gippsland South District by-election 
  • 2013
    Date Election
    27 April Lyndhurst District by-election
  • 2012
    Date  Election
    21 July Melbourne District by-election
    24 March Niddrie District by-election 
  • 2011
    Date Election
    19 February Broadmeadows District by-election
  • 2010
    Date Election
    13 February Altona District by-election
  • 2008
    Date Election
    28 June Kororoit District by-election
  • 2007
    Date Election
    15 September Albert Park District by-election
    15 September Williamstown District by-election