Udolpho Township is a township in Mower County, Minnesota, United States. The population was 458 at the 2000 census. There are no recognized cities or towns and the whole township is an unincorporated area. Blooming Prairie is only about a quarter of a mile away in Steele County to the north. The township's name is taken from a gothic novel titled The Mysteries of Udolpho by the English author Ann Radcliffe.