Noah Durham Comstock (November 22, 1832 – June 6, 1890) was an American farmer and politician.
Born in Lowville, New York, Comstock moved to Calhoun County, Michigan in 1850. In 1851, he moved to Indiana and then in 1853, Comstock moved to California. In 1855, Comstock settled in the town of Arcadia, Trempealeau County, Wisconsin and was a farmer. Comstock served as the Arcadia Town Treasurer in 1858 and Trempealeau County Treasurer in 1860, 1862, and 1864. He also served on the Trempealeau County Board of Supervisors in 1868. In 1872, 1874, 1876, and 1876, Comstock served in the Wisconsin State Assembly and was a Republican. From 1883 to 1887, Comstock also served in the Wisconsin State Senate. Comstock died of heart disease in Arcadia, Wisconsin.