Paul O. Husting (April 25, 1866 - October 21, 1917) was a member of the Democratic Party who represented Wisconsin in the United States Senate from 1915 to 1917.
He was born in Fond du Lac, Wisconsin, and graduated from the University of Wisconsin Law School. He began his political career as an attorney and served as the district attorney of Dodge County from 1902 to 1906, and in the Wisconsin State Senate from 1907 to 1913. He was elected to the United States Senate in 1914 and served in the Senate from 1915 until his death. He was chairman of the Committee on Fisheries during 1917 and chairman of a committee investigating trespasses on Indian lands during his entire time in the Senate.
He was killed in a duck hunting accident on Rush Lake near Picketts, Wisconsin, the only United States senator known to have been killed this way. He is interred at the Graceland Cemetery in Mayville, Wisconsin.
Preceded by: Isaac Stephenson Class 3 U.S. Senator from Wisconsin 1915 - 1917 Succeeded by: Irvine Lenroot