Thomas Harrop Sidebottom (16 April 1826 – 25 May 1908) was a British businessman and Conservative Party politician. He was the eldest son of William Sidebottom of Etherow House, Hollingworth, Cheshire. Following education at Manchester Grammar School, he followed his father into business as a cotton spinner and manufacturer in the city. He was a director of the Manchester, Sheffield and Lincolnshire Railway and was considered an authority on bimetallism. Sidebottom was appointed a justice of the peace for the counties of Cheshire and Derbyshire and in 1886 married Edith Murgatroyd of Didsbury.