Joseph-Octave Latour (11 February 1906 – 22 May 1975) was a Progressive Conservative party member of the House of Commons of Canada. He was a notary by career. Latour was born in Saint-Jérôme, Quebec and attended school at Saint-Jérôme Collegiate, Sainte-Thérèse Seminary, and the Université de Montréal where he attained a Bachelor of Arts degree. Between 1945 and 1958 he was registrar for Deux-Montagnes County.