This is a list of elections in Canada in 2012. Included are provincial, municipal and federal elections, by-elections on any level, referendums and party leadership races at any level.

January to April

• January 16 - North Glengarry, Ontario mayoral by-election^[1]
• February 27
  • 2012 Hinton, Alberta municipal by-election
  • Yellowhead County, Alberta municipal by-election, 2012
• March 19 - Federal by-election in Toronto—Danforth
• March 24 - 2012 New Democratic Party leadership election
• March 26 - Rocky View County, Alberta municipal by-election, 2012
• April 23
  • 2012 Alberta general election
  • 2012 Alberta Senate nominee election

May to August

• May 1 - 2012 Stony Plain municipal by-election
• May 14 - 2012 New Brunswick municipal elections
• June 11 – Argenteuil and LaFontaine by-elections
• June 25 - Rothesay by-election

September to December

• September 4
  • Fort Whyte by-election
  • 2012 Quebec general election
• September 6 - Kitchener—Waterloo and Vaughan by-elections
• October 15
  • Iqaluit municipal election, 2012
  • Northwest Territories municipal elections, 2012 (taxed communities)
• October 18 - Yukon municipal elections, 2012
• October 20 - 2012 Nova Scotia municipal elections
• October 24 - 2012 Saskatchewan municipal elections (urban municipalities)
• October 27 - 2012 New Brunswick Liberal Association leadership election
• November 3 - 2012 Green Party of Prince Edward Island leadership election
• November 5 - 2012 Prince Edward Island municipal elections, excluding Charlottetown, Cornwall, Stratford and Summerside
• November 7 - 2012 Saskatchewan municipal elections (odd-numbered rural municipalities)
• November 11 - Municipal by-election in Rivière-des-Prairies, Montreal
• November 26 - Federal by-elections in Calgary Centre, Durham, and Victoria
• December 3 - Nunavut municipal elections, 2012 (hamlets)
• December 10 - Northwest Territories municipal elections, 2012 (hamlets)