The Mylius–Eaton House is a historic building located in Sioux City, Iowa, United States. The house was built by Charles Mylius, who an Italian-born Englishman. Mylius, however, never lived here. That distinction belonged to Franz and Matilda Shenkberg, whose marriage ended in divorce and they sold the house in 1906 to Fred and Lillian Eaton. Eaton was a banker who became the president of the Sioux City Stock Yards, and he was involved in a variety of other businesses and organizations in the community. The house remained in the Eaton family until 1967.