Thomas Osborne Davis (16 August 1856 – 23 January 1917) was a Canadian Member of Parliament in the House of Commons of Canada representing the Provisional District of Saskatchewan, and later a member of the Senate of Canada. He was tutored by his father Samuel Davis and became a general merchant at Prince Albert, Northwest Territories. In 1885, he married Rebecca Jennings. He served on the town council for Prince Albert and was mayor from 1894 to 1895.