Helen Kalin Klanderud (June 9, 1937 – October 3, 2013) was an American politician, clinical social worker and attorney. In 1980, Klanderud was elected to the Pitkin County, Colorado, Board of County Commissioners, becoming the first woman to serve as a county commissioner. She later served as the Mayor of Aspen, Colorado, for three-consecutive terms from 2001 to 2007.