Gaspard Fauteux, PC (August 27, 1898 – March 29, 1963) was a Canadian parliamentarian, Speaker of the House of Commons of Canada (1945–1949), and the 19th Lieutenant Governor of Quebec (1950–1958).
His grandfather, Honoré Mercier and his uncle, Lomer Gouin, were both former Premiers of Quebec.
His grandmother's second husband was Liberal Member of Parliament (MP) and later Senator Joseph Godbout.
In Parliament, Fauteux opposed conscription and was a delegate to the United Nations Relief and Rehabilitation Conference that followed World War II.
Despite his lack of legal training or long tenure in the House, he was tapped by Prime Minister William Lyon Mackenzie King to become Speaker following the 1945 election.