George W. Gardner (1834–1911) was a grain dealer and the 28th and 30th Mayor of Cleveland, serving two terms as a Republican. He was also co-proprietor with John D. Rockefeller and Maurice B. Clark of the firm Clark, Gardner & Company, later Clark & Rockefeller, commission merchants. They were the largest grain dealers in Cleveland before Rockefeller went on with Clark in the oil industry.

The mayor of Cleveland is the head of the executive branch of government of the City of Cleveland, Ohio. As the chief executive in Cleveland's mayor–council system, the mayor oversees all city services and is "responsible for enforcing the city charter, city ordinances, and the laws of the State of Ohio." The mayor's office is located at Cleveland City Hall at 601 Lakeside Avenue in Downtown Cleveland. Since 1836, the city has had a total of 54 mayors, including the city's current mayor, Justin Bibb, encompassing 58 mayoral administrations, as four mayors have served in non-consecutive terms.