Adin Randall (October 12, 1829 - April 26, 1868) was a philanthropist, businessman, and politician in the Chippewa Valley of Wisconsin, who served as a first Treasurer of Eau Claire County, Wisconsin. He ran a ferry across the Chippewa, a planing mill, a sash and door factory, and invented the sheer boom to efficiently shunt logs into Half Moon Lake. He is regarded as one of the founders of the city. He donated the land for Randall Park, Lakeview Cemetery and the Eau Claire Area School District.