St. Katherine's Historic District is located on the east side Davenport, Iowa, United States and is listed on the National Register of Historic Places. It is the location of two mansions built by two lumber barons until it became the campus of an Episcopal girls' school named St. Katharine's Hall and later as St. Katharine's School. The name was altered to St. Katharine-St. Mark's School when it became coeducational. It is currently the location of a senior living facility called St. Katherine's Living Center.