The Third Legislature of Quebec was the provincial legislature of Quebec, Canada from 1875 to 1878, following the general election of 1875. In the 1875 election, Premier Charles Boucher de Boucherville and the Conservative Party of Quebec won a majority in the Legislative Assembly and continued in office with a majority government. However, in 1878, de Boucherville was dismissed from office by the Lieutenant Governor of Quebec Luc Letellier de Saint-Just, who appointed Henri-Gustave Joly de Lotbinière, the leader of the Quebec Liberal Party as premier.