Zachary Thompson Space[1] (born January 27, 1961) is an American lawyer and politician and the former U.S. Representative for Ohio's 18th congressional district, serving from 2007 until 2011.

The elder Space was also active in local politics, serving a long tenure as Chairman of the Tuscarawas County Democratic Party.

In addition to his private law practice, he has worked as a public defender and served as Special Counsel to two Attorneys General of Ohio, Anthony J. Celebrezze, Jr. and Lee Fisher.

[10] He is an advocate for embryonic stem cell research, a position he embraced after his son Nicholas was diagnosed with Type I diabetes at age six.

Rep. Space voted for the Waxman-Markey "cap and trade" bill allowing it to be brought out of committee and be passed by the House.

American Electric Power and the Environmental Defense Fund ran a commercial congratulating Rep. Space for his vote.

[14] On August 7, Ney withdrew from the race, citing concerns about legal issues facing him; he pleaded guilty to charges related to the Jack Abramoff Indian lobbying scandal on October 13.

In a special primary the Ohio Republican party selected State Senator Joy Padgett to replace Ney.

Space was challenged by Republican State Senator Bob Gibbs and Constitution Party Lindsey Sutton.

Space formally announced his campaign for Ohio Auditor of State in August 2017 with stops in Martins Ferry, Zanesville, Columbus, and Lima.

[23] In June 2018, Space announced a plan to form a unit in the Auditor's office to investigate the full extent of the for-profit charter school scam in Ohio.

[24] Space's proposal was criticized by Faber, who argued that the auditor was already responsible for auditing all charter schools in Ohio.

[25] In August 2018, Space announced a plan to investigate the effects of NAFTA-era free trade policies on Ohio communities and workers.