Zachary T. "Zack" Space is an American politician and the former U.S. Representative for Ohio's 18th congressional district, serving from 2007 until 2011. He is a member of the Democratic Party. After serving in Congress, Space was a principal for Vorys Advisors LLC, a subsidiary of the law firm Vorys, Sater, Seymour and Pease. In August 2017, he announced his campaign for Ohio State Auditor in 2018.