The treasurer of the U.S. state of Ohio is responsible for collecting and safeguarding taxes and fees, as well as managing state investments. The Treasury was located in the Ohio Statehouse from 1861 to 1974, when it was moved to the Rhodes State Office Tower. The original office in the statehouse, which has been restored to its 19th-century appearance, is used for ceremonial events.

The Ohio Statehouse is the state capitol building and seat of government for the U.S. state of Ohio. The Greek Revival building is located on Capitol Square in Downtown Columbus. The capitol houses the Ohio General Assembly, consisting of the House of Representatives and the Senate. It also contains the ceremonial offices of the governor, lieutenant governor, state treasurer, and state auditor. Built between 1839 and 1861, it is one of the oldest working statehouses in the United States. The statehouse grounds include two other buildings, the Judiciary Annex or Senate Building, and the Atrium; the three are collectively referred to as the Ohio Statehouse into the present day.