The 2005 British Columbia general election was held on May 17, 2005, to elect members of the Legislative Assembly (MLAs) of the Province of British Columbia (BC), Canada. The British Columbia Liberal Party formed the government of the province prior to this general election under the leadership of Premier Gordon Campbell. The main opposition was the British Columbia New Democratic Party, whose electoral representation was reduced to two MLAs in the previous provincial election in 2001.

The Legislative Assembly of British Columbia is the deliberative assembly of the Parliament of British Columbia, in the province of British Columbia, Canada. The other component of Parliament is the lieutenant governor of British Columbia. The assembly has 87 elected members and meets in Victoria. Members are elected from provincial ridings and are referred to as members of the Legislative Assembly (MLAs). Bills passed by the assembly are given royal assent by the lieutenant governor in the name of the King of Canada.